Multifunctional charger with single-chip microcomputer control management charging circuit
A multi-functional charger and single-chip microcomputer control technology, which is applied in the direction of battery circuit devices, current collectors, circuit devices, etc., can solve the problems of difficult implementation of analog circuit control methods, inconvenient use, single function, etc.
Inactive Publication Date: 2015-11-25
张翠红
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Problems solved by technology
[0002] At present, most battery chargers on the market use analog circuits for constant current and voltage limiting and constant voltage and current limiting. Charging has a single function and is inconvenient to use. Although a few chargers also have voltage and current adjustment knobs, the same charger must be used for different types of batteries (such as lead-acid, lithium batteries, nickel metal hydride, etc.) or according to the charging characteristics of the battery itself. For charging with complex charging curves (such as pre-charging, floating charging, multi-stage constant voltage, multi-stage constant current, etc.), it is difficult to realize the control mode of the analog circuit
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[0011] Below in conjunction with accompanying drawing, describe the preferred embodiment of invention in detail:
[0012] The invented multifunctional charger with single-chip microcomputer control and management charging circuit can output charging voltage and charging current conforming to the battery charging characteristic curve for different batteries and provide charging protection, which includes voltage and current control circuit 1, voltage and current acquisition module 2 , charging state indication circuit 3, single-chip intelligent controller 4 and battery pack 5. When the single-chip smart charger 4 is powered on, its main voltage output terminal outputs voltage to the drain of PMOS tube Q1, and the auxiliary voltage output terminal provides voltage to the single-chip microcomputer U2, and the single-chip microcomputer U2 starts to run the internal program: configure two resistors connected to resistor R6 and resistor R7 The pin is in analog-to-digital conversion ...
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The invention provides a multifunctional charger with a single-chip microcomputer control management charging circuit. The multifunctional charger comprises a voltage and current control circuit module, a voltage and current acquisition module, a charging state indication circuit module, and a single-chip microcomputer intelligent controller. According to the multifunctional charger, the intelligent controller is employed to control the voltage and the current, detect the kinds of batteries, and perform charging protection, and the multifunctional charger is advantaged by convenience in debugging, intelligence, wide application range, and high reliability.
Description
technical field [0001] The invention relates to a multifunctional charger with a charging circuit controlled and managed by a single-chip microcomputer, in particular to a multifunctional intelligent charger which uses a single-chip microcomputer as a control device, can output different charging voltages and charging currents to different batteries, and provide charging protection. Background technique [0002] At present, most battery chargers on the market use analog circuits for constant current and voltage limiting and constant voltage and current limiting. Charging has a single function and is inconvenient to use. Although a few chargers also have voltage and current adjustment knobs, the same charger must be used for different types of batteries (such as lead-acid, lithium batteries, nickel metal hydride, etc.) or according to the charging characteristics of the battery itself. For charging with complex charging curves (such as pre-charging, floating charging, multi-s...
Claims
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Inventor 张翠红
Owner 张翠红