| 摘要 |
Embodiments of apparatus and methods for charging a battery are disclosed. The apparatus may comprise a connector configured to electrically couple to a battery, an adjustable current source capable of supplying current to the connector at a plurality of charge rates, and a resistor network configured to bias the adjustable current source to supply current at one of the plurality of charge rates in response to a digital input signal. The method may comprise receiving a digital input signal having a plurality of bits, the digital input signal indicating a desired charge rate for the battery, configuring a resistor network in response to the digital input signal, biasing an adjustable current source using the configured resistor network, and supplying current to the battery at the desired charge rate using the adjustable current source. |
