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Lithium Cell Charging - precautions and processes for safe charging and use. The balance circuits are responsible for ensuring that the voltage across any. Cells can also be connected in parallel, most commonly as a series-parallel network. As is clearly shown in the graph, a fast charge means that the capacity lags.
Description
A simple method of charging a battery from a higher voltage battery is shown in the circuit below to the left. Only one resistor is needed to set the desired charging current and is calculated by dividing the difference in battery voltages by the charge current. So, for example if 4 high capacity (4000 mA hour) ni-cads are to be charged at 300 mA from a 12 volt battery, the resistor needed would be 12-(4*1.25)/0.3 = 23.3 ohms, or 22 ohms which is the nearest standard value. The power rating for the resistor is figured from the square of the current times the resistance or (0.3)^2 * 22 = 2 watts which is a standard value but close to the limit, so a 5 watt or greater value is recommended.
The circuit below (right) illustrates a constant current source used to charge a group of 1 to 10 ni-cad batteries. A 5K pot and 3.3K resistor are used to set the voltage at the emitter of the TIP 32 which establishes the current through the output and 10 ohm resistor. The emitter voltage will be about 1.5 volts above the voltage at the wiper of the pot, or about 1/2 the supply voltage when the wiper is in the downward most position. In the fully upward position the transistors will be turned off and the current will be close to zero. This yields a current range of 0 to (0.5*input)/10 or 0 to 850 milliamps using a 17 volt input. This produces about 7 watts of heat dissipation at maximum current for the 10 ohm resistor, so a 10 watt or greater rating is needed. The TIP 32 transistor will also dissipate about 7 watts if the output is shorted and needs to be mounted on a heat sink. If more than 4 cells are connected, the maximum current available will decrease and limits the current setting to about 100 milliamps for 10 cells. The usual charge rate for high capacity (4AH) 'D' cells is 300 to 400 milliamps for 14 hours and 100 milliamps for (1.2AH) 'C' or 'D' cells. For small 9 volt batteries the charge rate is 7 milliamps for 14 hours which would be difficult to set and probably unstable, so you could reduce the range to 0-20 mA by using a 750 ohm resistor in place of the 10. The charge current can be set by connecting a milliamp meter across the output (with the batteries disconnected) and then adjusting the control to the desired current, or by monitoring the voltage across the 10 ohm resistor (1 volt = 100 mA) or (1 volt = 1.33 mA using a 750 ohm resistor). The current control should be set to minimum (wiper in uppermost position) before power is applied, and then adjusted to the desired current.
The circuit (lower right) illustrates using a LM317 variable voltage regulator as a constant current source. The voltage between the adjustment terminal and the output terminal is always 1.25 volts, so by connecting the adjustment terminal to the load and placing a resistor (R) between the load and the output terminal, a constant current of 1.25/R is established. Thus we need a 12 ohm resistor (R) to get 100mA of charge current and a 1.2 ohm, 2 watt resistor for 1 amp of current. A diode is used in series with the input to prevent the batteries from applying a reverse voltage to the regulator if the power is turned off while the batteries are still connected. It's probably a good idea to remove the batteries before turning off the power.
Circuit diagram
circuit fromhttp://www.bowdenshobbycircuits.info/page7.htm#charge.gif
A charging circuit without loss balance charging multiple serial batteries Download PDFInfo
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- CN101123359A CN101123359ACN 200610115453CN200610115453ACN101123359ACN 101123359 ACN101123359 ACN 101123359ACN 200610115453 CN200610115453 CN 200610115453CN 200610115453 ACN200610115453 ACN 200610115453ACN 101123359 ACN101123359 ACN 101123359A
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- 蔡文坪
- 东华能源科技股份有限公司
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- 2006-08-10CNCN 200610115453patent/CN101123359A/ennot_activeApplication Discontinuation
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Abstract
Translated from Chinese一种无损均衡充电多节串联电池的充电电路,其设有由多个电池串联连接的电池组,电池组与一电源供应器相接,每二个电池之间串联连接一切换开关,且每一电池并联连接一精密电压检测器,令该电压检测器可检测电池的电压是否充饱,并将检测出的结果传送至一充电控制电路,此充电控制电路则控制切换开关的开关位置;借此,充电时,电源供应器的充电源可对各电池进行充电;当电压检测器检测出其中一电池的电压,达到充饱的状态时,充电控制电路即控制对应该电池的切换开关为断路状态(OFF),令该电池停止充电,如此,逐一将充饱电的电池的电路断开,直到完成充电为止。 A lossless series multi-equalizing charge the battery charging circuit, which is provided by a plurality of battery cells connected in series, a battery pack and a power supply contact, a switch is connected between every two cells in series, and each a battery connected in parallel with a precision voltage detector, enabling the voltage detector may detect whether the voltage of the battery is fully charged, and transmits the detected result to a control circuit charging, the charge control circuit controls the switch position of the switch; by here, the charging, charging source of the power supply can charge each battery; when the voltage detector detects a state in which voltage is a battery reaches fully charged state, the charging control circuit that is controlled to be the switch of the battery is open circuit state (OFF), enabling the battery to stop charging, so, one by one fully charged battery circuit disconnection, until charged.
Description
Translated from Chinese一种无损均衡充电多节串联电池的充电电路技术领域本发明是一种无损均衡充电多节串联电池的充电电路,尤指一种对多个串联电池进行充电,并以一充电控制电路对每一电池侦测及控制的充电电路者。 A lossless equalizing charge multiple-series battery charging circuit Technical Field The present invention is a lossless charge equalization multiple-series battery charging circuit, particularly to a series of a plurality of charging the battery, and a charging control circuit to each a battery charging circuit and the detection-controlled.背景技术随着数字相机、PDA、 MP3、...等便携式电子产品的需求日益增加,对于可充电的电池容量的要求也愈大,对于充电时间的要求也愈短,另外,对于充电器的体积也要求更轻薄。 BACKGROUND As the demand for digital cameras, PDA, MP3, ... and other portable electronic products is increasing, the requirements for rechargeable battery capacity is also greater for the charging time requirements are also shorter, in addition, for the charger volume also requires thinner.因此, 一种体积小又能快速充电且价格低廉寿命长的充电器,似乎是未来发展的趋势。 Thus, one small but fast charging and inexpensive long-life battery charger, seems to be the future trend.但是目前常用的充电器,各具有其优缺点,尚无法达到前述预期的功效, 故仍有改善空间。 But the most commonly used charger, each has its advantages and disadvantages, could not be expected to achieve the aforementioned effect, so there is still room for improvement.兹分别说明如下:请参阅图1所示,是常用串联式充电器的充电电路示意图,其是将市电AC 100V- 240V的交流电,以电源转换器11使其转换为DC充电电压,借由充电电路12对串联连接的电池B1、 B2、 B3、 B4.,.进行充电;此等充电模式的优点是结构简单、价格便宜,但是其缺点是当其中一颗电池充饱时,另一颗如尚未充饱,则会造成已充饱电的电池过度充电而发生危险,或未达到最大充电容量即停止充电,或多次反复充/放电后某颗电池特性恶化而降低其使用寿命。 Hereby respectively, as follows: Please refer to FIG. 1, a circuit diagram of a conventional tandem type charging charger, which is a mains AC 100V- 240V AC power to the power converter 11 to convert it into a DC charging voltage, by means of charging circuit 12 of battery B1 are connected in series, B2, B3, B4, charging;.. such advantage is a simple charge mode, cheap, but the disadvantage is that when the time which a fully charged battery, the other one if not already fully charged, will result in a hazardous situation has been fully charged the battery is overcharged, or charging capacity reaches the maximum charging is stopped, or repeatedly charging and deterioration of the battery characteristics of a particle / post-discharge and reduce its useful life.再者,请参阅图2所示,是常用一种并联式充电器的充电电路示意图, 其是由充电电路12对并联连接的电池B1、 B2、 B3、 B4…进行充电的模式,其优点是每一个电池的充电电压接近,没有前述串联式充电有过度充电的缺点; 但此种并联充电模式的最大缺点,是如欲急速充电,则无法克服急速充电的 Also, see FIG. 2 is a schematic diagram of a charging circuit used one kind parallel charger, a charging circuit 12 which is connected in parallel to the battery B1, B2, B3, B4 ... charging mode, the advantage a charging voltage of each cell approaches, no excessive charging of said series charging drawbacks; but the biggest drawback of such a parallel charging mode, a to quick charging, rapid charging can not be overcome
要求,且其电子控制零件的选择与配设不易,例如充电电压为3.7V,每一颗并联电池充电电流为1.5安培,则其充电电流即须6安培,而电子零件的晶体管则有压差问题,要形成低电压高电流的充电回路,有诸多问题须克服, 例如电路板线路需达6 IM以上的安全规格不易布线,致使并联式充电式的体积无法缩小,零组件容易产生高温发烫,且不易达到大容量急速充电的功效, 故,已无法达到市场要求。 Requirements, and which controls the electronic parts arranged easily select, for example, the charging voltage is 3.7V, each one connected in parallel to the battery charging current 1.5 amps, i.e. it shall be 6 amps charging current, the electronic component is a transistor differential pressure problem, to form a low voltage, high current charging circuit, there are many problems to be overcome, such as circuit boards in the line must be at least 6 IM easy wiring safety standards, so that the volume of the rechargeable parallel can not be reduced, hot components subject to high temperatures , and difficult to achieve quick charging mass effect, therefore, it has been unable to meet market requirements.如果充电电压欲提高增加功率降低电流,但四颗开关晶体管Q1、 Q2、 Q3、 Q4因压差问题,会产生极度高温无法克服的缺点, 如果加散热片体积又过大且成本大幅提高。 If the charge voltage to be increased to improve the current power decrease, but the four switching transistors Q1, Q2, Q3, Q4 due to differential pressure problems, extreme heat generated drawback can not be overcome, if additional heat sink and the volume is too large and substantial increase in costs.
发明内容发明人有鉴于前述常用充电器的充电电路的缺点,乃依其从事各种充电器的制造经验和技术累积,针对上述缺失悉心研究各种解决的方法,在经过不断的研究、实验与改进后,终于开发设计出本发明的一种全新无损均衡充电多节串联电池的充电电路的发明,以期能摒除先前技术所产生的缺失。 SUMMARY OF THE INVENTION In view of the foregoing disadvantages of the conventional charging circuit of the charger, in which Corneille manufacturing experience and various chargers accumulation of diligent studies for the above various deletion of the solution, through continuous research, experiments and improvements in after finally succeeded in developing the invention, a new non-destructive charge equalization circuit of the present invention, a charging section plurality of series-connected batteries, with a view to the prior art produced by deletion exclude.
本发明的一目的,是提供无损均衡充电多节串联电池的充电电路,以改善上述常用充电器的充电电路的缺点,并符合充电快速、安全性高、体积轻小、电池无须事先挑选配对、且可达到最大充电容量的要求。 An object of the present invention is to provide a non-destructive charge equalization multiple-series battery charging circuit, the charging circuit in order to improve the shortcomings of the conventional charger, fast charging and compliance, safety, small size, light, battery without prior selection of pairs, and can meet the requirements of the maximum charge capacity.
根据上述的目的,本发明无损均衡充电控制电路设有由多个电池串联连接的电池组,电池组与一电源供应器相接,使电源供应器提供恒流充电源给电池组,每二个电池之间串联连接一切换开关,且每一电池并联连接一精密电压检测器,令该电压检测器可检测电池的电压,并将检测出的结果传送至一充电控制电路,此充电控制电路则与切换开关相接,以控制切换开关的开关位置;使用时,充电控制电路可操控各切换开关的开关位置为通路(0N), 使电源供应器的恒流充电源对每一个电池进行充电;当电压检测器检测出其中一电池的电压达到充饱的状态时,充电控制电路即依据此充饱信息,控制对应该电池的切换开关为断路状态(OFF),令流入该电池的充电流,经由与该电池并联连4妄的旁路,流入下一个电池,4吏该电池停止充电,如此,逐一将充饱电的电 According to the above-described object, the present invention is not impaired by the equalizing charge control circuit is provided with a plurality of battery cells connected in series, a battery pack and a power supply contact, so that the power supply to the battery charging constant current source group, each of the two connected in series between a battery switch, and each cell is connected in parallel a precision voltage detector, enabling the voltage detector may detect voltage of the battery, and transmits the detected result to a control circuit charging, the charge control circuit is contact with the switch to control the switch position of the switch; when used, the charge control circuit may control the switching position of each switch is switched path (0N), so that the constant current power supply source for charging each battery charged; when the voltage detector detects a state in which voltage of a battery reaches the fully charged state, the charge control circuit that is based on this full charge information, controls the switch to be the battery of the OFF state (OFF), so that the inflow of the battery charging current, via a bypass connected parallel to the battery 4 jump, the next flow into a battery, the battery 4 official stop charging, so, one by one full electric charge的电路断开,直到完成充电为止。 The circuit breaking, until charged.附图说明图1为常用串联式充电器的电路示意图。 BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a circuit diagram of the conventional tandem type charger.图2为常用并联式充电器的电路示意图。 FIG 2 is a circuit diagram of conventional charger parallel.图3为本发明充电控制电路的电路示意图。 3 a circuit diagram of a charging control circuit of the present invention.图4为本发明充电控制电路另一实施例的电路示意图。 FIG 4 is a schematic view of another embodiment of the invention the charging circuit embodiment of the control circuit.图5为本发明充电控制电路的电位偏移的电路示意图。 FIG 5 a schematic circuit diagram of the potential shift control circuit charging the present invention.符号说明:11、 电源转换器12、 充电电路3、无损均衡充电电路El、 E2、 ...En、电池31、 电源供应器Kl、 K2、 ...Kn、切换开关32、 精密电压检测器33、 充电控制电路34、 旁路PM0S1、 PM0S2.,.PM0Sn、 P型金属氧化物半导体NM0S1、 NM0S2…NM0Sn、 N型金属氧化物半导体51、光电耦合器具体实施方式为对本发明的目的、形状、构造装置特征及其功效,做更进一步的认识 Description of Symbols: 11, power converter 12, a charging circuit 3, lossless balanced charging circuit El, E2, ... En, the battery 31, the power supply Kl, K2, ... Kn, the changeover switch 32, a precision voltage detector 33, the charging control circuit 34, a bypass PM0S1, PM0S2.,. PM0Sn, P-type metal oxide semiconductor NM0S1, NM0S2 ... NM0Sn, N-type metal oxide semiconductor 51, the photocoupler DETAILED embodiments for the purposes of the present invention, the shape of configured device features and effects of the further understanding do
与了解,兹举实施例配合图式,详细说明如下:本发明是有关一种「无损均衡充电多节串联电池的充电电路」,请参阅图3所示,其是显示本发明充电电路的一最佳实施例的电路示意图,本发明无损均衡充电电路3设有由多个电池E1、 E2、 ...En串联连接的电池组,电池组与一电源供应器31相接,使电源供应器31提供恒流(恒定电流)充电源给电池组,每二个电池之间串联连接一切换开关Kl、 K2、 ...Kn,且每一电池并联连接一精密电压检测器32,令精密电压检测器32可检测电池的电压,并将检测出的结果传送至一充电控制电路33,充电控制电路33则与切换开关Kl、 K2、 ...Kn相接,以控制各切换开关的开关位置。 And understanding, hereby give Example embodiments with drawings, are described below: The present invention relates to a 'lossless charge equalization multiple-series battery charging circuit', see FIG. 3, which is a charging circuit of the present invention is a a circuit schematic of the preferred embodiment, the present invention is non-destructive charge equalization circuit 3 is provided with a plurality of batteries E1, E2, ... En serially connected battery pack, a battery pack and a power supply contact 31, so that the power supply 31 provides a constant current (constant current) charging source to the battery pack, the connection between each two cells in series a switch Kl, K2, ... Kn, each of the cells connected in parallel and a precision voltage detector 32, so that precision voltage detector 32 may detect the voltage of the battery, and transmits the detected result to a charging control circuit 33, charge control circuit 33 and the switch Kl, K2, ... Kn contact, to control the switch position of each of the switch .使用时,充电控制电路33可操控各切换开关的开关位置为通路(0N), 使电源供应器31的恒流(恒定电流)充电源对每一个电池进行充电。 In use, the charge control circuit 33 may control the switch to switch the position of each passage (0N), the power supply supplies a constant current (constant current) charging source for charging each battery 31.当精密电压检测器32检测出其中一电池的电压达到充饱的状态时,即传送充饱信息至充电控制电路33,使充电控制电路33依据此充饱信息,控制对应该电池的切换开关为断路状态(OFF),令流入该电池的充电源,经由与该电池并联连接的旁路34 ,流入下一个电池(不流入该电池),使该电池停止充电,如此, 逐一将充饱电的电池的电路断开,直到完成充电为止。 When the precision voltage detector 32 detects a state in which when a battery voltage reaches a fully charged state, i.e., transmit full charge information to the charge control circuit 33, the charging control circuit 33 based on this full charge information, controls the switch to be cell is open state (OFF), so that the inflow of the battery charging source is connected via a bypass in parallel to the battery 34, a battery into the next (not flow into the cell), so that the battery charging is stopped, so, one by one in the fully charged battery circuit is opened until charged.因此,借助上揭技术手段,利用充电控制电路33对每一个串联连接的电池E1、 E2、 ...En单独侦测,并佐以控制停止充电的时间,达到智能型判饱的功效,且对串联连接的任一电池皆可单独充电。 Thus, by exposing the technology, the use of rechargeable batteries E1 control circuit 33 connected in series with each, E2, ... En separately detected and combined with the control stop charging time to reach full effectiveness intelligent judgment, and any one of the batteries connected in series Jieke charged separately.本发明的另一实施例中,请参阅图4所示,该切换开关K1、K2、 ...Kn可以用P/N型金属氧化物半导体(M0S )取代,是于原切换开关Kl、K2、…Kn位置设置N型M0S( NM0S1 、 NM0S2…NM0Sn ),而P型MOS则与充电控制电路33并联连接(PMOSl、 PM0S2…PM0Sn),其中N型MOS的源极与前一个电池连接,漏极与后一个电池连接,栅极和P型MOS 的栅极则与充电控制电路的输出连接,P型MOS的源极则与电池的正极相接, 漏极则并与N型M0S的漏^及相连4矣。 Another embodiment of the present invention, please refer to FIG. 4, the switch K1, K2, ... Kn may be substituted with a P / N-type metal oxide semiconductor (M0S), is the original switch Kl, K2 , ... Kn position of the N-type M0S (NM0S1, NM0S2 ... NM0Sn), and the P-type MOS, the circuit 33 are connected in parallel (PMOSl, PM0S2 ... PM0Sn) charge control, wherein the source of the N-type MOS is connected to the previous one battery drain and a battery connected to the electrode, and the gate of the P-type MOS is connected to the output of the charge control circuit, a positive electrode in contact with the source electrode of the P-type MOS of the battery, and the drain of the drain of the N-type M0S ^ 4 and is connected to carry.使用时,充电控制电路33可操控各N型MOS (NM0S1、 NM0S2.,.NM0Sn)为通路(ON)状态,P型MOS (PM0S1、 PM0S2、 PMOSn)为断路状态(OFF),使电源供应器31的恒流(恒定电流)充电源对每一个电池进行充电。 In use, the charge control circuit 33 may control respective N-type MOS (NM0S1, NM0S2.,. NM0Sn) is a passage (ON) state, P-type MOS (PM0S1, PM0S2, PMOSn) the OFF state (OFF), so that the power supply constant current (constant current) charging source 31 of each battery.当精密电压检测器32检测出其中一电池的电压,达到充饱的状态时,即传送充饱信息至充电控制电路33,使充电控制电路33依据此充饱信息,控制对应该电池的N型MOS为断路状态(OFF) 、 P型MOS为通路状态(ON ),令流入该电池的充电源,经由与该P型MOS流入下一个电池(不流入该电池),使该电池停止充电,如此,逐一将充饱电的电池的电路断开,直到完成充电为止。 When the precision voltage detector 32 detects a state in which voltage of a battery reaches fully charged state, i.e., transmit full charge information to the charge control circuit 33, the charging control circuit 33 based on this full charge information, the control N-type to be battery MOS the OFF state (OFF), P-type MOS is path state (the ON), so that the inflow of the battery charging source, via the P-type MOS flowing into the next battery (not flow into the cell), so that the battery stops charging, so , one by one fully charged battery circuit disconnection, until charged.而该充电控制电路33包含有电位偏移电路、重置器(Reset)、锁定器、 及开关驱动器。 And the charging control circuit 33 comprises a voltage offset circuit, the reset device (the Reset), lock, and a switch driver.请参阅图5所示,其中电位偏移电路可以采用光电耦合器51, 利用光电耦合器51初、次级绝缘特性,实现不同接地参考信号的电位偏移。 Please refer to FIG. 5, wherein the potential shift circuit may be employed photocoupler 51, the photocoupler using the potentiometer 51 First, secondary insulation properties, to achieve different signal ground reference offset.当精密电压检测器32输入的信号,其参考点为A,但后继接收电气输入参考点为B,利用光电耦合器51实现了精密电压检测器32信号由A参考点到B参考点的过渡,此即为电位偏移。 When the signal 32 is inputted precision voltage detector reference point A, but the subsequent receiving an electrical input reference point B, using a photocoupler 51 to achieve a transition 32 signal precision voltage detector points from A reference to the B reference point, namely the potential shift.而锁定器及开关驱动器更可由微处理器(MCU)及软件构成,当电位偏移输出的信号进入微处理器(MCU)后,微处理器(MCU)予以侦测,并输出相应控制信号,驱动外部切换开关K1、 O、…Kn动作。 Locking and switch the drive more by the microprocessor (MCU) and software configuration, when the potential shift signal is outputted into the microprocessor (MCU), a microprocessor (MCU) to be detected, and outputs a corresponding control signal, driving the external switch K1, O, ... Kn operation.此输出信号一旦有效,即不再受精密电压检测器32控制,而只受重置信号控制(该重置信号来自外部电源供应器);当重置信号到达时,原锁定的信号重置。 This output signal is valid once, i.e. no longer controlled by the precision voltage detector 32, and only the reset control signal (the reset signal from the external power supply) by; When the reset signal arrives, the reset signal is the original lock.同样微处理器(MCU) 输出的信号也可通过其它光电耦合器电位偏移到任意参考电位。 The same signal microprocessor (MCU) can also be shifted to the output of the reference potential via any other potential photocoupler.在上述的各实施例中,电池E1、 E2、 ...En可为高容量的电容器,或锂电池;本发明充电电路的应用领域,包含笔记型计算机的电池组,锂电电动自行车电池组,锂电电动摩托车电池组,锂电电动工具电池组,锂电电动船电池组,锂电高尔夫球车电池组,锂电太阳能灯具电池组,及有可能的纯锂电 In the above embodiments, batteries E1, E2, ... En may be a high-capacity capacitor or a lithium battery; Field of application of the present invention, a charging circuit, comprising a notebook computer battery, lithium battery electric bicycle, lithium battery electric motorcycle battery, power tools lithium battery, lithium battery electric boat, golf cart lithium battery, lithium battery solar lamps, and the possible pure lithium
及锂电/传统发动机混合动力电动汽车电池组,普通汽车的启动用锂电池电池组,和其它多节锂电串联电池组充电场合。 And lithium / conventional engine hybrid electric vehicle battery packs, starting with ordinary car lithium battery, lithium and other multi-series battery pack section occasion.以上所述,仅为本发明最佳具体实施例,但是本发明的构造特征并不局限于此,任何熟悉该项技艺者在本发明领域内,可轻易思及的变化或修饰, 皆可涵盖在本案的专利范围。 The above are only preferred embodiment of the present invention, but the construction features of the present invention is not limited thereto, and any person skilled in the art in the field of the present invention, and can easily think of variations or modifications, can be covered in the case of patentable scope.
Claims (3)
Translated from Chinese1、 一种无损均衡充电多节串联电池的充电电路,包括有: 一电池组,是由多个电池串联连接所组成,电池组与一电源供应器相接,使电源供应器提供恒定电流充电源给电池组;多个切换开关,设于每二个电池之间;多个精密电压检测器,与每一电池并联连接,精密电压检测器检测电池的电压,并将检测出的结果传送至一充电控制电路,充电控制电路则与切换开关相接,以控制各切换开关的开关位置;充电时,充电控制电路可操控各切换开关的开关位置为通路,使电源供应器的恒定电流充电源对每一个电池进行充电;当精密电压检测器检测出其中一电池的电压,达到充饱的状态时,即传送充饱信息至充电控制电路,使充电控制电路依据此充饱信息,控制对应该电池的切换开关为断路状态,使流入该电池的充电源,经由与该电池并联连接的旁路,流 1, a lossless series multi-equalizing charge the battery charging circuit comprising: a battery pack, a plurality of cells connected in series is composed of the battery pack with a power supply contact, so that the power supply provides a constant current charge source of the battery pack; a plurality of switches, each provided between two cells; a plurality of precision voltage detector, precision voltage detector detects a battery voltage, and transmits the detected result to each battery connected in parallel a charging control circuit, charge control circuit is in contact with the switch to control the switch position of the selector switches; charging, the charge control circuit may control the switching position of each switch is switched path, constant current charging of the power supply source each charge the battery; when precision voltage detector detects a state in which voltage of a battery reaches fully charged state, i.e., transmit full charge information to the charge control circuit, the charge control circuit according to this full charge information, control should be cell switch to the OFF state, flowing into the battery charging source is connected to the battery via the bypass in parallel flow下一个电池而不流入该电池,使该电池停止充电,如此逐一将充饱电的电池的电路断开,直到完成充电为止。 Without flowing into the next battery cell, so that the battery stops charging circuit one by one so fully charged battery disconnected until charged.
2、 根据权利要求1所述的无损均衡充电多节串联电池的充电电路,其中所述切换开关可以用P/N型金属氧化物半导体M0S取代,是于原切换开关位置设置N型MOS,而P型MOS则与充电控制电路并联连接,其中N型MOS的源极与前一个电池连接,漏极与后一个电池连接,栅极和P型M0S的栅极则与充电控制电路的输出连接,P型M0S的源极则与该电池的正极相接,漏极则并与N型MOS的漏极相连接。 2, according to claim 1, wherein said lossless equalization charging multiple-series battery charging circuit, wherein the switch may be replaced with P / N-type metal oxide semiconductor M0S, the switch is in the original position of the MOS type N is provided, and P-type MOS is connected in parallel with the charging control circuit, wherein the source of the N-type MOS is connected to the previous one battery, a battery drain is connected with the rear, and the gates of the P-type M0S output is connected to the charge control circuit, the source electrode of the P-type M0S, and a drain connected to the drain of the N-MOS in contact with the positive electrode of the battery.
3、 根据权利要求1所述的无损均衡充电多节串联电池的充电电路,其中所述电池可为高容量的电容器或锂电池。 3, according to claim 1, said lossless equalization charging multiple-series battery charging circuit, wherein the battery is a high-capacity capacitor or a lithium battery.
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CN 200610115453CN101123359A (en) | 2006-08-10 | 2006-08-10 | A charging circuit without loss balance charging multiple serial batteries |
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CN 200610115453CN101123359A (en) | 2006-08-10 | 2006-08-10 | A charging circuit without loss balance charging multiple serial batteries |
Country Status (1)
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CN101938015A (en) * | 2010-08-27 | 2011-01-05 | 华南师范大学 | Equalizing charge management system of lithium ion power battery pack |
CN102208820A (en) * | 2010-03-29 | 2011-10-05 | 比亚迪股份有限公司 | Energy storage battery pack parallel-connection device and control method thereof |
CN101577436B (en) | 2009-06-02 | 2012-05-23 | 奇瑞汽车股份有限公司 | Circuit of automotive battery and safety switch in circuit |
CN103166263A (en) * | 2011-12-14 | 2013-06-19 | 赵恩海 | 10-string series connection rechargeable battery pack equalization circuit |
CN104600801A (en) * | 2015-01-16 | 2015-05-06 | 荆延杰 | Charging and discharging balancing circuit and method of series battery pack |
CN104821626A (en) * | 2015-05-15 | 2015-08-05 | 江苏苏美达五金工具有限公司 | Rechargeable battery pack, charger, and charge control method |
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