Patent ID: 9698773
Date: 2017-07-04
CPC Classifications: H01L,H03K

Claim:
1. An electronic device comprising: a power supply terminal which is coupled to a power supply voltage; a grounding terminal which is coupled to a ground potential; an input terminal; a first terminal; a second terminal; a third terminal; a level shifting circuit which is coupled to the input terminal, the first terminal, and the grounding terminal and to which drive power is supplied from the first terminal; a driver circuit which is coupled to the first and second terminals and to which an output signal of the level shifting circuit is input and drive power is supplied from the first terminal; a first transistor whose gate electrode is coupled to the driver circuit, whose source is coupled to the second terminal, and whose drain is coupled to the third terminal; and a first element coupling the power supply terminal to the first terminal and the first element is a diode or a second transistor, wherein, when the power supply voltage is coupled to both the power supply terminal and the third terminal, a capacitor is coupled between the first terminal and the second terminal in parallel to the driver circuit, a load is coupled between the second terminal and the grounding terminal, and the first transistor is in an on state, a first current flows into the third terminal, through the first transistor, out of the second terminal, through the load, and to the ground potential, and wherein, when the power supply voltage is coupled to the power supply terminal, a capacitor is coupled between the first terminal and the second terminal in parallel to the driver circuit, the load is coupled between the power supply terminal and the third terminal, and the first transistor is in the on state, a second current flows through the load, into the third terminal, through the first transistor, out of the second terminal, and to the ground potential.