Lithium battery discharge circuit
A technology for discharging circuits and lithium batteries, applied in battery circuit devices, circuit devices, current collectors, etc., can solve the problems of high cost and high power consumption, and achieve the effects of low cost, simple structure and reduced power consumption.
Active Publication Date: 2016-09-28
NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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Problems solved by technology
The lithium battery discharge circuit with the above structure has the following disadvantages in actual use: because the discharge management module needs to monitor the system power supply and control the discharge of the lithium battery in real time, it not only consumes a lot of power, but also has a relatively high cost
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[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0016] Such as figure 1 , figure 2 As shown, a lithium battery discharge circuit of the present invention includes a lithium battery, and the lithium battery discharge circuit also includes a discharge management module and a control circuit for controlling the discharge of the lithium battery; the input terminal of the discharge management module is connected to the lithium battery The output end of the discharge management module is connected to the control circuit; the control circuit includes resistors R2, R3, R4, R5, R6, R7, triodes V1, V2, and capacitor C5; one end of the resistor R2 is connected to the electric energy meter The other end of the resistor R2 is connected to one end of the resistor R6 and one end of the resistor R7; the other end of the resistor R6 is connected to the b pole of the transistor V1, and the c pole of the tra...
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The invention discloses a lithium battery discharge circuit. The input terminal of the discharge management module is connected with the lithium battery; the output terminal of the discharge management module is connected with the control circuit; One end of R6 and one end of resistor R7 are connected; the other end of resistor R6 is connected to the b pole of the transistor V1, the c pole of the transistor V1 is connected to one end of the resistor R3, and the b pole of the transistor V2; the other end of the resistor R3 is connected to the b pole of the resistor R4 One end is connected to the d pole of the MOS tube; the other end of the resistor R4 is connected to the c pole of the triode V2, the g pole of the MOS tube, and one end of the resistor R5; the other end of the resistor R7 is connected to the e pole of the triode V1 and the e pole of the triode V2 , the other end of the resistor R5, and one end of the capacitor C5 are both grounded; the other end of the capacitor C5 is connected to the s pole of the MOS tube. The circuit has low power consumption and low cost.
Description
technical field [0001] The invention relates to a circuit for discharging a backup battery of an electric energy meter, in particular to a lithium battery discharge circuit. Background technique [0002] The lithium battery discharge circuit in the prior art is a discharge management module, which is connected with the lithium battery and the system power supply on the electric energy meter. When discharging, the system power supply on the electric energy meter is detected by the discharge management module, and then controls whether the lithium battery is discharged. The lithium battery discharge circuit with the above structure has the following disadvantages in actual use: because the discharge management module needs to monitor the system power supply and control the discharge of the lithium battery in real time, it not only consumes a lot of power, but also has a relatively high cost. Therefore, based on the above reasons, there is an urgent need for a lithium battery ...
Claims
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IPC IPC(8): H02J7/00
CPCH02J2207/20
Inventor 郑坚江李剑刘渊
Owner NINGBO SANXING MEDICAL & ELECTRIC CO LTD