Patent ID: 9176178
Filing Date: 2015-11-03
Classification: G01R

Abstract:
1. A battery simulation circuit, comprising: an input/output terminal electrically connected to an electronic device; an integrated amplifier comprising a non-inverting input pin, an inverting pin, an input/output pin, and a current limitation pin; a voltage adjustment unit electrically connected to the non-inverting input pin to provide a reference voltage to the integrated amplifier; a current limitation unit electrically connected to the current limitation pin to provide a reference current to the integrated amplifier; a feedback unit electrically connected to the input/output pin, the inverting pin, and the input/output terminal to provide a negative feedback signal for the integrated amplifier; and wherein the integrated amplifier outputs an output signal according to the reference voltage and the reference current; the battery simulation circuit supplies power for the electronic device; when the output terminal is connected to a DC power source and a voltage of the DC power source is greater than the output voltage of the output terminal, the battery simulation circuit simulates a battery being recharged by the DC power source via the output terminal.