Title:
駆動制御装置と駆動制御方法
Document Type and Number:
Japanese Patent JP6668202
Kind Code:
B2
Abstract:
A drive control device includes a MOS transistor, voltage measuring circuits, a correction circuit, and a control circuit. The voltage measuring circuits measure a drain-to-source voltage when a forward drain current flows through the MOS transistor and when a reverse drain current flows in the MOS transistor. The correction circuit sets a current setting voltage level when the reverse drain current flows, where the current setting voltage level is proportional to the voltage between the drain and the source when a predetermined reverse setting current flows in the MOS transistor. The control circuit controls ON/OFF of the MOS transistor in response to a control signal reflecting a measured value of the first voltage measuring circuit when the forward drain current flows through the MOS transistor and the current setting voltage level that is set by the correction circuit when the reverse drain current flows in the MOS transistor.
Inventors:
Hideki Kimura
Application Number:
JP2016175046A
Publication Date:
March 18, 2020
Filing Date:
September 07, 2016
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Electronic Devices & Storage Corporation
Toshiba Electronic Devices & Storage Corporation
International Classes:
H02P7/29; H02M7/48
Domestic Patent References:
| JP2011050234A | ||||
| JP2013198361A | ||||
| JP201041013A | ||||
| JP201280523A |
Attorney, Agent or Firm:
Sakai International Patent Office