Patent ID: 8558516
Filing Date: 2013-10-15
Classification: H02J

Abstract:
1. A charge-controlling semiconductor integrated circuit comprising: a current-controlling MOS transistor connected between a voltage input terminal and an output terminal, which current-controlling MOS transistor controls current flowing from the voltage input terminal to the output terminal; a substratum voltage switching circuit connected between the voltage input terminal and the output terminal, and a substratum of the current-controlling MOS transistor, wherein an input voltage or an output voltage is applied to said substratum, a voltage comparison circuit to compare the input voltage and the output voltage, wherein the voltage comparison circuit is configured to include an intentional offset in a first potential direction; and a level shift circuit to shift the output voltage to a potential direction opposite to the first potential direction, wherein: a voltage from the level shift circuit is input to a first input terminal of the voltage comparison circuit, the input voltage is input to a second input terminal of the voltage comparison circuit, and the charge-controlling semiconductor integrated circuit is configured to control the substratum voltage switching circuit based on an output of the voltage comparison circuit, such that: