Battery charging/discharging switching control protective circuit
First Claim
1. A battery charging/discharging switching control protective circuit comprising:
- a rectifier filter circuit to provide the battery charging/discharging switching control protective circuit with a necessary working voltage;
a microprocessor control circuit to provide a first time series pulse signal and a second time series pulse signal;
a time series control circuit to receive and process the first and second time series pulse signals from said microprocessor control circuit so as to provide a third time series pulse signal, a fourth time series pulse signal, and a fifth time series pulse signal;
a constant current control circuit controlled by the third time series pulse signal from said time series control circuit to set the value of charging or discharging current through a variable resistor thereof by controlling an electronic switching element based on a constant current set by said control circuit; and
a charging discharging loop controlled by the fourth and fifth time series pulse signals from said time series control circuit and electric current from said constant current control circuit to charge and discharge a charging discharging battery set, wherein the fourth and fifth time series pulse signals cause switches in said charging discharging loop to close before said electronic switching element is switched on by said constant current to complete said charging discharging circuit.
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Accused Products
Abstract
A battery charging/discharging switching control protective circuit including a charging discharging loop, a constant current control circuit connected to the input terminal of the charging discharging loop, a microprocessor control circuit, a time series control circuit with its input terminal connected to the microprocessor control circuit and its output terminal connected to the switch of the charging discharging loop and the switches of the constant current control circuit, the time series control circuit being controlled by the microprocessor control circuit to control the transistor of the charging discharging loop in charging or discharging the battery at a constant current value, and to control the switches of the charging discharging loop in turning off the transistor at the beginning or the end of the charging or discharging operation, so as to prevent the occurrence of electric arc, sparks, transient electric current and voltage during the switching of the switches of the charging discharging loop.
22 Citations
7 Claims
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1. A battery charging/discharging switching control protective circuit comprising:
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a rectifier filter circuit to provide the battery charging/discharging switching control protective circuit with a necessary working voltage; a microprocessor control circuit to provide a first time series pulse signal and a second time series pulse signal; a time series control circuit to receive and process the first and second time series pulse signals from said microprocessor control circuit so as to provide a third time series pulse signal, a fourth time series pulse signal, and a fifth time series pulse signal; a constant current control circuit controlled by the third time series pulse signal from said time series control circuit to set the value of charging or discharging current through a variable resistor thereof by controlling an electronic switching element based on a constant current set by said control circuit; and a charging discharging loop controlled by the fourth and fifth time series pulse signals from said time series control circuit and electric current from said constant current control circuit to charge and discharge a charging discharging battery set, wherein the fourth and fifth time series pulse signals cause switches in said charging discharging loop to close before said electronic switching element is switched on by said constant current to complete said charging discharging circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification