CN100438261C - Alternative looping recharger - Google Patents

Alternative looping recharger Download PDF

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CN100438261C
CN100438261C CN 200510084155 CN200510084155A CN100438261C CN 100438261 C CN100438261 C CN 100438261C CN 200510084155 CN200510084155 CN 200510084155 CN 200510084155 A CN200510084155 A CN 200510084155A CN 100438261 C CN100438261 C CN 100438261C
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voltage
signal
battery
current
reference voltage
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CN 200510084155
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CN1897394A (en
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何国斌
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栢怡国际股份有限公司
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Abstract

本发明交替回路式充电装置,包括有:一提供第一参考电压与第二参考电压的控制器;一电压误差放大器,连接于电池与控制器,是取得一电池电压信号与第一参考电压,并进行比较运算,以输出一电压误差信号;一电流误差放大器,连接于电池与控制器,取得一电池电流信号与第二参考电压,并进行比较运算,以输出一电流误差信号;一信号选择器,连接于电压误差放大器与电流误差放大器,接收电压误差信号与电流误差信号,用以选择其中之一输出作为回授信号;及一转换器,连接于市电电源与电池,是根据信号选择器输出的回授信号,将该市电电源转换成为合适的充电电源。 Alternately charging circuit of the present invention apparatus comprising: a controller to provide a first reference voltage and a second reference voltage; a voltage error amplifier, and a controller connected to the battery, the battery voltage is to obtain a signal with a first reference voltage, and comparison operation to output a voltage error signal; a current error amplifier, and a controller connected to the battery, the battery current signal to obtain a second reference voltage, and comparison operation to output a current error signal; a selection signal It is connected to the voltage error amplifier and the current error amplifier receives a voltage and a current error signal the error signal, for selecting one of the output as a feedback signal; and a converter connected to a mains power supply and the battery, based on signal selection feedback signal output by the utility power source is converted into a suitable charging source.

Description

交替回路式充电装置 Circuit alternately charging device

技术领域 FIELD

本发明涉及一种交替回路式充电装置,尤指一种利用定电压模式与定电流模式交替对电池充电的充电装置。 The present invention relates to an alternating loop type charging device, particularly to a constant by the constant voltage mode and current mode alternately charging means for charging the battery.

背景技术 Background technique

一般公知锂电池的充电需经过预先充电阶段(precharge)、定电流充电阶段(normal charge )、及定电压充电阶段(top-off)、最后始完成充电而自动结束充电。 Generally known rechargeable lithium batteries subject to the pre-charging phase (precharge), a constant current charging phase (normal charge), and a constant voltage charging phase (top-off), and finally completed the charging start automatically charging ends. 请参考图1,为公知电池各阶段充电的示意图。 Please 1, each stage of charging the battery schematic known reference to FIG. 当电池曾深度放电时,电池充电应先进入预先充电阶段,在预先充电阶段中,电源部份提供一个小的定电流IP对电池充电,直到电池电压到达一正常电压值Vn。 When the battery has been deeply discharged, the battery should the charging into the pre-charge stage, the pre-charging phase, a power supply part small IP constant current to charge the battery until the battery voltage reaches a normal voltage value Vn. 在预先充电阶段后则进入定电流充电阶段,电源部份提供额定的定电流In以快速的对电池充电。 After the precharge phase proceeds constant current charging phase, a power supply part supplying a nominal current In to quickly charge the battery. 在快速充电后,电池达到一临界电压Vc,电源部份停止提供额定的定电流It转成定电压充电(CV)。 After the fast charge voltage Vc of the battery reaches a threshold, the power supply portion to stop supplying a nominal constant current constant voltage charging It converted into (CV). 在定电压充电阶IS:,充电电流I会逐渐下降,等下降到一充电电流终结值It时,电池电压V已经非常接近电池电压的一充电目标值Vt,始完成充电而自动结束充电。 Constant voltage charging in order IS :, charging current I will gradually decline, and so the charging current falls to a termination value It, the battery voltage V is very close to the target value of the battery voltage Vt of a charging, charging is completed automatically start the charging is ended. 从上面所述可知,公知电池充电的过程中,需执行以下各功能动作: Seen from the above, the known battery charging process, the following functions need to perform the acts of:

1. 设定预先充电阶段与定电流充电阶段时的电流值。 1. Set current value when the pre-charging stage with a constant current charging phase.

2. i殳定正常电池电压与目标电池电压的电压值。 2. i Shu predetermined voltage value normal battery voltage and the target battery voltage.

3. 侦测电池电压。 3. detecting the battery voltage.

4. 侦测充电电流o 4. The charging current detection o

请参考图2,为公知电池充电装置示意图。 Please refer to FIG. 2, a schematic diagram of a battery charging device is known. 转换单元110将市电电源111 转换成为一充电电源112以对电池30进行充电,同时提供辅助电源113提供电源给电路中的各电子组件使用。 Conversion unit 110 converts the mains supply 111 into a charging power supply 112 to charge the battery 30, while the auxiliary power source 113 provides power to the various electronic components provided in the circuits used. 转换单元110有两个回授输入端点(114、 115),是用来接受回授信号,以调节充电电源112的输出。 Conversion unit 110 has two feedback input terminal (114, 115), used to receive a feedback signal to regulate the output 112 of the charging power source. 电压误差放大器120比丰支充电电源112与一参考电压121用以输出一电压回授信号,该电压回授信号输入到回授输入端点114以调整稳定充电电源112的电压输出。 120 charging power source voltage error amplifier 112 with a branched abundance than the reference voltage 121 for outputting a voltage feedback signal, the feedback voltage signal is input to the feedback input terminal 114 to adjust the output voltage stabilized power supply 112 is charged. 电流误差放大器130比较电池30的充电电流信号131与一电流参考值132用以输出一电流回授信号,该电流回授信号输入到回授输入端点115,以调整稳定充电电源112的电流输出。 The current error amplifier 130 compares the battery charging current signal 131 and 30, a current reference value 132 for outputting a current feedback signal, the feedback signal is input to a current feedback input terminal 115, to adjust the output current stabilized power supply 112 is charged. 电压侦测比较电路150撷取电池30的电压,并且将该撷取的电压与一参考电压151做比较运算,以输出一电位信号152。 The voltage detection circuit 150 to retrieve the battery voltage comparator 30 and the retrieved reference voltage and a voltage comparison operation 151, 152 to output a voltage signal. 电流侦测比较电路160撷取电池30的电流信号(131),并且将该撷取的电流信号与一参考电压161做比较运算,以输出一电位信号162。 Comparing the current signal detection circuit 160 to retrieve the current signal (131) of the battery 30 and the retrieved reference voltage 161 and a compare operation to output a voltage signal 162. 控制器170分别提供参考电压151、 161到该电压侦测比较电路150与该电流侦测比较电路160,同时提供控制信号143、 144给一控制开关组140使用。 The controller 170 is a reference voltage 151, comparator 161 to the voltage detecting circuit 150 detects the current comparison circuit 160, while providing control signals 143, 144 to 140 using a control switch group. 控制信号143、 144分别控制开关141、 142互补交替的切换,用以提供充电电源112对电池30充电的不同阻力的充电路径。 Control signal 143, 144 control the switches 141, 142 alternately switched complementary, for providing a charging power source 112 for charging the battery 30 in different charging path resistance.

公知的电池充电装置所需耗费的电子组件甚多,使其无法有效的缩小封装的尺寸,同时所使用的控制器170其输出/输入接脚也相对的多,使的控制电路更为复杂,所需耗费的价格也昂贵。 The battery charging apparatus known electronic components required to spend very much, so that it can not effectively reduce the size of the package, while relatively more controllers 170 used in the output / input pin, so that the control circuit is more complex, required to spend the price expensive.

发明内容 SUMMARY

有鉴于此,本发明使用简易的充电装置拓朴,用以减少公知充电装置架构中复杂的电子组件,是利用定电压模式与定电流模式交替的对电池充电。 Accordingly, the present invention is a charging device using a simple topology for reducing the charging apparatus known in the complex architecture of the electronic components, is the use of constant current mode and constant voltage mode are alternately charge the battery.

本发明交替回路式充电装置,包括有: 一个可以提供一第一参考电压与一第二参考电压的控制器; 一电压误差放大器,连接于电池与该控制器,是 Alternately charging circuit of the present invention apparatus comprising: a controller may be provided a first reference voltage and a second reference voltage; and a voltage error amplifier, connected to the battery to the controller, is

侦测取得一电池电压信号与该第一参考电压,并将该电池电压信号与该第一参考电压进行比较运算,以输出一电压误差信号; 一电流误差放大器,连接于该电池与该控制器,是取得一电池电流信号与该第二参考电压,并将该电池电流信号与该第二参考电压进行比较运算,以输出一电流误差信号; 一信号选择器,连接于该电压误差放大器与该电流误差放大器,接收该电压误差信号与该电流误差信号,用以选择其中的一输出作为回授信号;及一转换器, Obtaining a battery voltage detection signal and the first reference voltage and the battery voltage signal is compared with the first calculation reference voltage to output a voltage error signal; a current error amplifier connected to the battery and the controller , is to obtain a battery current signal and the second reference voltage and the battery current signal and the second reference voltage comparison operation to output a current error signal; a signal selector connected to the amplifier and the voltage error a current error amplifier receiving the error voltage signal and the current error signal, for selecting as an output wherein the feedback signal; and a transducer,

5连接于市电电源与该电池,是根据该信号选择器输出的回授信号,用以将该市电电源转换成为一合适的充电电源,其中,该控制器提供的该第一参考电 The first reference to a mains power supply 5 is connected to the battery, based on the feedback signal output from the signal selector to the utility power source is converted into a suitable charging power source, wherein the controller provides

压与该第二参考电压,是根据该电压或电流误差信号的大小而调整。 Pressure and the second reference voltage is adjusted according to the magnitude of the voltage or current error signal. .

以上的概述与接下来的详细说明都为示范性质,是为了进一步说明本发明的保护范围。 The foregoing general description and the following detailed description are exemplary, and are intended to further illustrate the scope of the present invention. 而有关本发明的其它目的与优点,将在后续的说明与附图加以阐述。 Other objects and advantages of the present invention is related, it will be set forth in the subsequent description and the accompanying drawings.

附图说明 BRIEF DESCRIPTION

图1为公知电池各阶段充电的示意图; 图2为公知电池充电装置示意图; 图3为本发明电路示意图。 1 is a schematic known various stages of charging the battery; FIG. 2 is a schematic diagram of a known battery charging apparatus; FIG. 3 a schematic circuit diagram of the present invention. 图号i兌明: 公知: FIG against the number i: A well-known:

转换单元110 充电电源112 Rechargeable power supply unit 110 converts 112

回授输入端点(114、 115) 参考电压121 充电电流信号131 控制开关组140 控制信号143、 144 参考电压151 电流侦测比较电路160 电〗立4言号162 电池30 本发明: 转换器210 充电电源212 The feedback input terminal (114, 115) the charge current reference voltage signal 121 controls the switch 131 control signal group 140 143 144 151 current detection reference voltage comparator circuit 160 is electrically〗 Li 4 162 made of the present invention the battery 30: charging converter 210 power 212

6 6

市电电源111 Mains supply 111

辅助电源113 电压误差放大器120 电流误差放大器130 电流参考值132 开关141、 142 电压侦测比较电路150 电位信号152 参考电压161 控制器170 113 auxiliary power supply voltage of the error amplifier 120 of the current error amplifier 130 132 current reference value switches 141, 142 detect the voltage potential of the signal comparison circuit 150 controller 152 reference voltage 161 170

市电电源211 辅助电源213回授4言号214 Mains supply auxiliary power 211 213 214 feedback 4 words

电压误差放大器220 Voltage error amplifier 220

第一参考电压221 电池电压信号223 电池电Wd言号231 电流误差信号233 信号选择器280 A first reference voltage battery voltage signal 221 223 231 Introduction Wd battery current error signal 233 signal selector 280

电压误差信号222 电流误差放大器230 第二参考电压232 控制器270 Voltage error signal 222 of the current error amplifier 230 of the second controller 270 a reference voltage 232

电池40 40 Battery

具体实施方式 Detailed ways

请参考图3,为本发明电路示意图。 Please refer to FIG. 3, a circuit diagram of the present invention. 本发明交替回路式充电装置,包括有: 一个可以提供一第一参考电压221与一第二参考电压232的控制器270; —电压误差放大器220,连接于电池40与该控制器270,是侦测取得一电池电压信号223与该第一参考电压221,并将该电池电压信号223与该第一参考电压221进行比较运算,以输出一电压误差信号222; —电流误差放大器230,连接于该电池40与该控制器270,是取得一电池电流信号231与该第二参考电压232,并将该电池电流信号231与该第二参考电压232进行比较运算,以输出一电流误差信号233; —信号选择器280,连接于该电压误差放大器220与该电流误差放大器230,接收该电压误差信号222与该电流误差信号233,用以选择其中之一输出作为回授信号214;及一转换器210,连接于市电电源211 与该电池40,是4艮据该信号选择器280输出的回授信号214,用以将该市电电源211转换成为一稳定 Type charging circuit of the present invention alternating apparatus, comprising: a first reference voltage may be provided a controller 221 and a second reference voltage 232, 270; - the voltage error amplifier 220, connected to the battery 40 to the controller 270, a detect obtaining a measured cell voltage signal 223 and the first reference voltage 221, and the battery voltage signal 223 is compared with the first reference voltage calculation 221 to output a voltage error signal 222; - the current error amplifier 230 is connected to the 40 and the battery controller 270, it is to obtain a battery current signal 231 and the second reference voltage 232, and the battery current calculation signal 231 is compared 232 with the second reference voltage to output a current error signal 233; - signal selector 280 is connected to the voltage error amplifier 220 and the current error amplifier 230 receives the voltage error signal 222 to the current error signal 233 for selecting one of the output as feedback signal 214; and a converter 210 connected to the mains supply 211 to the battery 40, according to a feedback signal Gen 4 output from the signal selector 280 214, to the utility power source 211 is converted into a stable 充电电源212。 Charging power source 212.

该信号选择器280是由二个二极管Dl、 D2连接组成,接收该电压误差信号232与该电流误差信号233,并根据该两信号的强度,将较强的误差信号予以输出,成为一回授信号214。 The signal selector 280 is composed of two diodes Dl, D2 connected to form, receives the voltage error signal 232 and the current error signal 233, and in accordance with the strength of the two signals, the output will be stronger error signal back into a credit 214.

转换器210将市电211转换成为充电电源212,用来对电池40充电,并且同时输出辅助电源213以提供本发明充电装置其它电子组件工作所需的电力。 210 converter 211 converts the mains power supply 212 to become charged, to charge the battery 40, and simultaneously the output of the auxiliary power source 213 of the present invention to provide charging power other electronic components required for the device to work. 转换器210透过一回授输入端连接该信号选择器280,用来接收该回授信号214。 Converter 210 connected to the signal selector 280 via a feedback input terminal for receiving the feedback signal 214. 转换器210可才艮据该回授信号214,用以调整输出充电电源212。 Gen converter 210 can only according to the feedback signal 214 to adjust the output of the charging power source 212. 控制器270利用一输入端连接于电压误差放大器220的输出端,用来侦测该电压误差信号222,然后根据该电压误差信号222,以输出并调整该第一参考电压221与第二参考电压232。 Controller 270 using an input terminal connected to the output voltage of the error amplifier 220 for detecting the voltage error signal 222 and error signal 222 based on the voltage, to output a first reference voltage and adjusting the second reference voltage 221 232.

请配合图1,再参考图3,在预先充电阶段中,控制器270提供一低的第二参考电压232给该电流误差放大器230,同时提供一正常的第一参考电压221给该电压误差放大器220。 Please with FIG. 1, Referring again to FIG. 3, the pre-charging phase, the controller 270 provides a second low reference voltage of the current error amplifiers 232 to 230, while normally providing a first reference voltage to the voltage error amplifier 221 220. 当电池40曾深度放电时,电池40的电压小于第一参考电压221,所以电压误差放大器220输出一低电位的电压误差信号222。 When the battery 40 has the deep discharge voltage of the battery 40 is less than a first reference voltage 221, the voltage of the error amplifier 220 outputs a low potential voltage error signal 222. 信号选择器280将选择电位较高、来至电流误差放大器230的误差信号233作为其输出信号214,转换器210会以该信号214为回授信号,M电池40侦测到的电池电流信号231稳定于第二参考电压232所设定的水平,以固定的j氐电流对电池40充电。 Signal selector 280 selects the higher potential to the current error signal to the error amplifier 230 as its output signal 233 is 214, the converter 210 will signal to the feedback signal 214, cell M 40 detects battery current signal 231 stabilized at 232 the second reference voltage level set at a fixed Di j charging current to the battery 40.

充电电源对电池40充电,且电池40渐渐;也建立起电压,当电池电压到达第一参考电压221时,电压误差放大器220输出的电压误差信号222回升, 当控制器270侦测到该信号回升,可得知预先充电阶段已告完成,进而提高第一参考电压221与第二参考电压232、分别至一目标电压值与一额定电流值, 以进入定电流充电阶段。 Charging power supply 40 to charge the battery, and the battery 40 gradually; also establish a voltage, when the battery voltage reaches a first reference voltage 221, voltage error amplifier 220 outputs a voltage error signal 222 picked up, when the controller 270 detects the signal picked up , that may be pre-charging phase has been completed, thereby increasing a first voltage reference 221 and the second reference voltage 232, respectively, to a target voltage value and a rated current value, to enter the constant current charging phase. 在进入定电流充电阶段后,第一参考电压221(即目标电压(cut-offvoltage))比电池40电压高,所以在电压误差放大器220输出端的误差信号222回落到低电位。 After entering the constant current charging phase, a first reference voltage 221 (i.e., the target voltage (cut-offvoltage)) is higher than the voltage of the battery 40, the error signal 220 output of the voltage error amplifier 222 down to a low potential. 此时,信号选择器会选取电位较高的电流误差信号233,作为回授信号214。 In this case, the signal selector may select a higher potential current error signal 233, 214 as the feedback signal. 转换器210取得该回授信号214,把充电电源稳定于额定的定电流以快速的对电池40充电。 Converter 210 acquires the feedback signal 214, the constant current charging power stabilized at a nominal 40 to quickly charge the battery.

额定的定电流快速对电池40充电,〗吏得电池40电压逐渐上升到目标电压,当电池40电压接近目标电压时,电压误差放大器220输出的电压误差信号222回升赶过电流误差放大器230输出的电流误差信号233。 Constant current rated fast charge the battery 40,〗 officials have the battery 40 voltage is gradually increased to the target voltage, when the battery 40 voltage approaches the target voltage, the output voltage error amplifier 220 the voltage error signal 222 picked up in time the output current of the error amplifier 230 current error signal 233. 所以信号选择器会选取电位较高的电压误差信号222,作为回授信号214。 The signal selector will select a higher potential voltage error signal 222, 214 as the feedback signal. 转换器210 取得该回授信号214,把充电电源稳定于目标电压对电池40充电。 Converter 210 acquires the feedback signal 214, the charging power supply voltage stabilized to the target charge the battery 40. 同时,当控制器270侦测到电压误差信号222的回升,可得知定电流充电阶段已告完成,从而开始定电压充电阶段。 Meanwhile, when the controller 270 detects the recovery of the voltage error signal 222, that may be a constant current charging phase has been completed, thereby starting the constant voltage charging phase. 在定电压充电阶段,控制器270需不时检测终结电流。 In the constant voltage charging phase, the controller 270 detects the end of the current required from time to time. 为此,控制器270 首先把第二参考电压232的值往充电电流终结值(termination level )逐步调低。 To this end, the controller 270 first reference voltage 232 of the second charging current to the termination value (termination level) gradually lowered. 此时,只要充电电流在终结值以上,电流误差放大器230的输出电位,也即电流误差信号233,将往高电位回升,赶过电压误差信号222,而主导控制回授控制系统,把转换器210的输出电力调低。 At this time, the charge current as long as the termination value or more, the output potential of the current error amplifiers 230, i.e., the current error signal 233, the pick-up to the high potential, the overvoltage error signal 222 in time, the dominant control feedback control system, the converter output power of 210 down. 电压误差放大器220的输出电位,也即电压误差信号222,将往低电位回落。 The potential of the output voltage error amplifier 220, i.e. the voltage error signal 222, will fall to a low potential. 当控制器270检测到该电位回落,可得知充电电流仍在终结值的上,也即充电过程尚未完成。 When the controller 270 detects the voltage drop, that the charging current may be still on the termination value, i.e. the charging has not been completed.

注意在此时由于转换器210的输出电力已被调低,充电过程也因而受阻。 Note that in this case, since the output power of the converter 210 has been lowered, the charging process is thus blocked. 控制器270在完成电流检测之后,应马上把第二参考电压232调回高电位(目标电压值),以便充电过程继续进行。 After the completion of the current controller 270 detected to be immediately transferred back to a second high potential reference voltage 232 (target voltage value), so that the charging process continues. 由此检测过程所引致的充电阻延,因其为时短暂,不会对整体充电过程构成实质的影响。 Thereby detecting the charging process caused delays, because of short duration, does not constitute a substantial impact on the overall charging process.

以上的电流4企测过程,可在定电压充电阶段重复施行,直至在控制器270 已把第二参考电压232的值往低调至充电电流终结值而还未能够检测到电压误差信号222往低电位回落时为止。 More than half of the current measuring process 4, the implementation may be repeated at constant voltage charging phase, until the value of the second reference voltage 232 to the controller 270 Yiba charging current to low-end value has not been able to detect the voltage error signal 222 to the low At the time of the potential fall. 至此,充电过程可^L为完成。 Thus, the charging process can be completed as ^ L. 控制器270 得把第一参考电压221调至一较低电位,以降低充电电压,终止充电电流, 而结束充电。 Controller 270 to have a first reference voltage 221 is adjusted to a relatively low potential, to reduce the charging voltage, the charging current is terminated, and the charging is ended.

综上所述,控制器270根据电压误差放大器220输出的电压误差信号222 分别输出并调整第一参考电压221与第二参考电压232到电压误差放大器220 与电流误差放大器230。 In summary, controller 270 in accordance with the error voltage signal output from the voltage error amplifier 220 outputs a first reference voltage and adjusting the second reference voltage 221 222 232 to the voltage error amplifier 220 and the current error amplifier 230. 电压误差放大器220与电流误差放大器230分别产生电压误差信号222与电流误差信号233,且由一信号选择器280依据该两信号的强度,将较强的误差信号传送到转换器210,以调节电源,提供各阶段电池充电所需。 Voltage error amplifier 220 and the current error amplifier 230 respectively generate voltage error signal 222 and the current error signal 233, and based on the strength of the two signals, the stronger error signal selector 280 transmits a signal to the converter 210 to adjust the power providing each of the stages required to charge the battery.

按照以上所述的电压跟电流检测原理,控制器270 —样可以根据电流误差放大器230输出的电流误差信号233来决定电池的充电状态,从而输出适当的第一参考电压221与第二参考电压232,以达到相同的充电效果。 Voltage current detection principle in accordance with the above, the controller 270-- like may be determined according to the current state of charge of the battery error signal 230 output from the current error amplifier 233, thereby outputting a first reference voltage appropriate second reference voltage 221 and 232 , to achieve the same charging effect.

综上所述,仅为本发明最佳之一的具体实施例的详细说明与附图,但本发明的特征并不局限于此,并非用以限制本发明,本发明的所有范围应以权利要求为准,凡合于本发明保护范围的精神与其类似变化的实施例,都应包含于本发明的范畴中,任何熟悉该项技术者在本发明的领域内,可轻易思及的变化或修饰都可涵盖在本发明的权利要求中。 In conclusion, only the detailed description and the accompanying drawings of the preferred embodiment, one specific embodiment of the present invention, the features of the present invention is not limited to this, not to limit the present invention, all the scope of the invention as claimed should claims and their equivalents, all together in the spirit of the scope of the present invention similar to the embodiment and its variations, should be included in the scope of the invention, any of those skilled in the art in the field of the present invention, and can easily think of variations or modifications can be covered by the claims of the present invention.

Claims (5)

1.一种交替回路式充电装置,是接收一市电电源,用以对一电池充电,包括有: 一控制器,是提供一第一参考电压与一第二参考电压; 一电压误差放大器,连接于该电池与该控制器,是取得一电池电压信号与该第一参考电压,并将该电池电压信号与该第一参考电压进行比较运算,进而输出一电压误差信号; 一电流误差放大器,连接于该电池与该控制器,是取得一电池电流信号与该第二参考电压,并将该电池电流信号与该第二参考电压进行比较运算,进而输出一电流误差信号; 一信号选择器,连接于该电压误差放大器与该电流误差放大器,接收该电压误差信号与该电流误差信号,用以选择其中之一输出,作为回授信号;及一转换器,连接于该电池与该市电电源,是根据该回授信号,用以将该市电电源转换成为一合适的充电电源; 其特征在于,该控 An alternate charging circuit means receiving a mains supply for charging of a battery, comprising: a controller to provide a first reference voltage and a second reference voltage; a voltage error amplifier, connected to the battery and the controller, is to obtain a battery voltage signal and the first reference voltage and the battery voltage signal is compared with the first reference voltage operation, and further outputs a voltage error signal; a current error amplifier, connected to the battery and the controller, is to obtain a battery current signal and the second reference voltage and the battery current signal is compared with the second reference voltage operation, and further outputs a current error signal; a signal selector, connected to the voltage error amplifier and the current error amplifier receiving the error voltage signal and the current error signal, for selecting one of the output, as a feedback signal; and a converter connected to the battery and the utility power source , based on the feedback signal, for converting the mains power into a suitable charging source; wherein the control 制器提供的该第一参考电压与该第二参考电压,是根据该电压或电流误差信号的电位而调整。 The first reference voltage and the second reference voltage provided by braking, is adjusted according to the potential of the voltage or current error signal.
2. 如权利要求1所述的交替回路式充电装置,其特征在于,该转换器进一步将该市电电源转换成为一辅助电源,用以提供该控制器使用。 2. The circuit alternately charging device according to claim 1, wherein the converter further converts the utility power source becomes an auxiliary power source for providing the controller.
3. 如权利要求1所述的交替回路式充电装置,其特征在于,该信号选择器是由一第一二极管及一第二二极管连接组成,该第一二极管与该第二二极管的阴极端共同连接至转换器回授信号输入端,该第一二极管的另一端与电压误差放大器输出端连接,该第二二极管的另一端与电流误差放大器输出端连接。 3. The circuit alternately charging device according to claim 1, wherein the signal selector is connected by a first diode and a second diode, the first diode and the second cathode terminal of the diode is commonly connected to the two converter feedback signal input terminal, the other terminal of the first diode and the error amplifier output voltage, the other end of the current error amplifier output terminal of the second diode connection.
4. 如权利要求1所述的交替回路式充电装置,其特征在于,该信号选择器是由一第一二极管及一第二二极管连接组成,该第一二极管与该第二二极管的阳极端共同连接至转换器回授信号输入端,该第一二极管的另一端与电压误差放大器输出端连接,该第二二极管的另一端与电流误差放大器输出端连接。 4. The circuit alternately charging device according to claim 1, wherein the signal selector is connected by a first diode and a second diode, the first diode and the second two anode terminal of the diode is connected to the converter common feedback signal input terminal, the other terminal of the first diode and the error amplifier output voltage, the other end of the current error amplifier output terminal of the second diode connection.
5.如权利要求1所述的交替回路式充电装置,其特征在于,该电池为一锂电池。 5. The circuit alternately charging device according to claim 1, wherein the battery is a lithium battery.
CN 200510084155 2005-07-14 2005-07-14 Alternative looping recharger CN100438261C (en)

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EP0752748B1 (en) 1995-06-07 1999-03-31 SGS-THOMSON MICROELECTRONICS S.r.l. Multiple function battery charger, self-configuring as supply voltage regulator for battery powered apparatuses
CN1507686A (en) 2001-09-14 2004-06-23 株式会社理光 Charging circuit for secondary battery

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0752748B1 (en) 1995-06-07 1999-03-31 SGS-THOMSON MICROELECTRONICS S.r.l. Multiple function battery charger, self-configuring as supply voltage regulator for battery powered apparatuses
CN1507686A (en) 2001-09-14 2004-06-23 株式会社理光 Charging circuit for secondary battery

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