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 power supply having an input; an integrated circuit having a plurality of inputs and an output coupled to the power supply input; and an analog circuit, the analog circuit having an input coupled to a charger exterior terminal and an output coupled to one of the plurality of integrated circuit inputs, the analog circuit configured such that
if a voltage at the input of the analog circuit is less than a predefined value than the integrated circuit input coupled the analog circuit is coupled to a reference voltage, andif the voltage at the input of the analog circuit is greater than the predefined value than the integrated circuit input coupled to the analog circuit is coupled to the input of the analog circuit.