Patent ID: 9099952
Filing Date: 2015-08-04
Classification: H02M,H02P

Abstract:
1. An apparatus for controlling switching devices for a direct current (DC) motor, the apparatus comprising: first switching devices mounted in a semiconductor chip to configure an internal circuit of the semiconductor chip with two half-bridges; and a dead-time controller provided on the semiconductor chip and configured to transmit gating signals directly to the first switching devices by controlling dead-time periods during operation of the first switching devices and operate second switching devices directly connected to a motor, the second switching devices mounted outside the semiconductor chip, wherein each of the two half-bridges includes two MOSFETs operating in pairs, the two half-bridges of the internal circuit are each connected to a P-channel MOSFET and an N-channel MOSFET provided on an outside of the internal circuit, the P-channel MOSFET and the N-channel MOSFET operate in pairs, and the P-channel MOSFET is directly connected to a DC motor to control the DC motor.