Battery pack and charger platform for power tool systems including battery pack identification scheme

摘要

A battery pack and charger platform including a voltage coupling circuit comprising an input that receives an input voltage and an output that sends an output voltage, a voltage monitoring circuit having an input coupled to the voltage coupling circuit output and an output, and a power source having an input coupled to the voltage monitoring circuit output, the power source input receives an input voltage representative of a charge instruction.

主权项

1. A battery charger, comprising:
a voltage coupling circuit comprising an input that receives an input voltage and an output that sends an output voltage, the voltage coupling circuit configured such that if the voltage coupling circuit input voltage is equal to a first reference voltage then the voltage coupling circuit couples the voltage coupling circuit output to a second reference voltage and if the voltage coupling circuit input voltage is not equal to the first reference voltage then the voltage coupling circuit couples the voltage coupling circuit output to the voltage coupling circuit input; a voltage monitoring circuit having an input coupled to the voltage coupling circuit output and an output, and a power source having an input coupled to the voltage monitoring circuit output, the power source input receives an input voltage representative of a charge instruction.