阅读说明：本技术 电池控制电路及电子设备 (Battery control circuit and electronic equipment ) 是由 陶波波 董锐华 于 2017-10-09 设计创作，主要内容包括：一种电池控制电路及电子设备,电池控制电路应用于具有N个电池的电子设备,控制电路包括控制器(101)、N个功率开关、N-1个功率二极管；N个功率开关的一端分别与N个电池的输出端串联连接；第一个功率开关的另一端,分别与电源输入端及第一个功率二极管的阳极连接；第i个功率开关的另一端,分别与第i-1个功率二极管的阴极及第i个功率二极管的阳极连接；第N个功率开关的另一端,分别与第N-1个功率二极管的阴极及电子设备中的各用电回路的供电端连接；控制器(101)的N个第一输出端分别与N个功率开关的控制端连接,用于控制N个功率开关的导通状态。所述电池控制电路及电子设备可以延长电池的使用寿命,提升电子设备的系统性能。(A battery control circuit and electronic equipment, the battery control circuit is applied to the electronic equipment with N batteries, the control circuit includes the controller (101), N power switches, N-1 power diodes; one end of each of the N power switches is connected with the output end of each of the N batteries in series; the other end of the first power switch is respectively connected with the power supply input end and the anode of the first power diode; the other end of the ith power switch is respectively connected with the cathode of the (i-1) th power diode and the anode of the ith power diode; the other end of the Nth power switch is respectively connected with the cathode of the (N-1) th power diode and the power supply end of each power utilization loop in the electronic equipment; n first output ends of the controller (101) are respectively connected with control ends of the N power switches and used for controlling the conducting states of the N power switches. The battery control circuit and the electronic equipment can prolong the service life of the battery and improve the system performance of the electronic equipment.)

A battery control circuit, for use in an electronic device having N batteries, the control circuit comprising: the power supply comprises a controller, N power switches and N-1 power diodes, wherein N is a positive integer greater than 1;

one end of each of the N power switches is connected with the output end of each of the N batteries in series;

the other end of the first power switch is respectively connected with the power supply input end and the anode of the first power diode;

the other end of the ith power switch is respectively connected with the cathode of the (i-1) th power diode and the anode of the ith power diode, wherein i is larger than 1 and smaller than N;

the other end of the Nth power switch is respectively connected with the cathode of the (N-1) th power diode and the power supply end of each power utilization loop in the electronic equipment;

n first output ends of the controller are respectively connected with control ends of the N power switches and used for controlling the conduction states of the N power switches.

The battery control circuit of claim 1, wherein the N battery capacities are different; and the N batteries are sequentially connected with one end of the first power switch and one end of the second power switch from large to small according to the capacity until the N batteries are connected with one end of the Nth power switch.

The battery control circuit of claim 2, wherein the controller is further configured to:

in the discharging process, when the electric quantity of the kth battery does not meet the power supply condition and the electric quantity of the kth +1 battery meets the power supply condition, controlling the kth +1 power switch to be switched on, and controlling the kth power switch to be switched off after delaying a first preset time interval, wherein k is a positive integer which is greater than or equal to 1 and less than or equal to N.

The battery control circuit of claim 2, wherein the controller is further configured to:

in the charging process, if the j +1 th battery and the j +1 th battery are determined to meet the charging condition, controlling the j +1 th power switch to be conducted to charge the j +1 th battery, wherein j is a positive integer which is greater than or equal to 1 and less than or equal to N;

and when the j +1 th battery is determined to be charged, controlling the j power switch to be switched on, and controlling the j +1 th power switch to be switched off after delaying a second preset time interval.

The battery control circuit of claim 1, further comprising: a voltage current sampling circuit;

the input end of the voltage and current sampling circuit is respectively connected with the output ends of the N batteries, and the output end of the voltage and current sampling circuit is connected with the first input end of the controller;

and the controller is used for determining the states of the N batteries according to the output value of the voltage sampling circuit so as to control the conduction states of the N power switches.

The battery control circuit of any of claims 1-5, further comprising: the charging control circuit is connected between the power supply input end and the other end of the first power switch tube in series;

the control end of the charging control circuit is connected with the second output end of the controller;

the controller is also used for controlling the charging current by controlling the working state of the charging control circuit.

The battery control circuit of claim 6, further comprising: the current detection circuit is connected between the charging control circuit and the other end of the first power switch tube in series;

the output end of the current detection circuit is connected with the input end of the controller;

the controller is further used for controlling the working state of the charging control circuit according to the output value of the current detection circuit.

The battery control circuit of claim 6, wherein the charge control circuit comprises: metal oxide semiconductor field effect transistors and triodes;

the grid electrode of the metal oxide semiconductor field effect transistor is connected with the third output end of the controller, the source electrode of the metal oxide semiconductor field effect transistor is connected with the fourth output end of the controller, and the drain electrode of the metal oxide semiconductor field effect transistor is connected with the base electrode of the triode;

and the emitter of the triode is connected with the input end of the power supply, and the collector of the triode is connected with the other end of the first power switch tube and the anode of the first power diode.

The battery control circuit of claim 1, further comprising: a surge voltage protection circuit;

one end of the surge voltage protection circuit is connected with the power supply end of each power utilization loop in the electronic equipment, and the other end of the surge voltage protection circuit is connected with the ground wire.

An electronic device comprising the battery control circuit according to any one of claims 1 to 9 and N batteries.

The electronic device of claim 10, further comprising: the flexible shell can be bent, and the elastic sheet pairs are symmetrically arranged on two sides of any bendable part of the flexible shell;

when the flexible shell is in a first state, two elastic sheets in the elastic sheet pair are reliably contacted; when the flexible shell is in a second state, two elastic sheets in the elastic sheet pair are separated, wherein the first state is a bending state, and the second state is a straight state;

one of the elastic sheet pair is connected with a power supply in the electronic equipment, and the other elastic sheet of the elastic sheet pair is connected with the input end of a controller in the battery control circuit;

and the controller is used for controlling the display state and the content of the display screen of the electronic equipment according to the voltage value on the other elastic sheet.