Technical Document
Specifications
Brand
MicrochipPower Management Function
Battery Charger
Kit Classification
Reference Design
Featured Device
MCP1630
Kit Name
NiMH
Product details
MCP1630 NiMH Battery Charger Reference Design
NiMH Battery Charger board preprogrammed to charge 3 NiMH cells. Charge profile and number of batteries can be changed with firmware. The design uses the MCP1630 High-Speed Analog PWM combined with the PIC microcontroller. Charge current is initially set for 1.35A fast charge, preconditioning charge current 170mA, and preconditioning threshold 3V.
Programmed parameters - modified in firmware
Top Off Charge Current = 130mA for 1 Hour
Overvoltage protection (battery removed)
Overcharge protection to prevent damaging the battery
Overcurrent protection in the event of a shorted battery
Battery reversal protection
Input short circuit protection
Overtemperature protection to prevent the battery from reaching too high a temperature during charge
Soft-start capability by holding the reference voltage low during power-up
Battery Management, Microchip
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Technical Document
Specifications
Brand
MicrochipPower Management Function
Battery Charger
Kit Classification
Reference Design
Featured Device
MCP1630
Kit Name
NiMH
Product details
MCP1630 NiMH Battery Charger Reference Design
NiMH Battery Charger board preprogrammed to charge 3 NiMH cells. Charge profile and number of batteries can be changed with firmware. The design uses the MCP1630 High-Speed Analog PWM combined with the PIC microcontroller. Charge current is initially set for 1.35A fast charge, preconditioning charge current 170mA, and preconditioning threshold 3V.
Programmed parameters - modified in firmware
Top Off Charge Current = 130mA for 1 Hour
Overvoltage protection (battery removed)
Overcharge protection to prevent damaging the battery
Overcurrent protection in the event of a shorted battery
Battery reversal protection
Input short circuit protection
Overtemperature protection to prevent the battery from reaching too high a temperature during charge
Soft-start capability by holding the reference voltage low during power-up