Title:
LOAD CONTROL DEVICE, LOAD CONTROL SYSTEM, AND IN-VEHICLE CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2020174474
Kind Code:
A
Abstract:
To provide a load control device, a load control system, and an in-vehicle control system which can reduce the number of semiconductor devices used for energization control when the number of loads to be controlled is large.SOLUTION: A load control device includes one H-bridge circuit BC and a plurality of half-bridge circuits B2 to B4, and one terminal of each of the plurality of loads is connected in common with one output terminal of the H-bridge circuit. The other terminal of each of the plurality of loads is connected to the other output terminal of the H-bridge circuit or the output terminal of either of the plurality of half-bridge circuits. A driver control unit 20 performs exclusive control such that a plurality of loads are not energized at the same time by signals applied to the H-bridge circuit and the plurality of half-bridge circuits. Since a part of a single H-bridge circuit is shared by the plurality of loads, it is not necessary to use a plurality of H-bridge circuits and the number of parts can be reduced. The priority of each of the loads is reflected in exclusive control to prevent delay in starting operation.SELECTED DRAWING: Figure 1
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Inventors:
IKETANI KOJI
Application Number:
JP2019075605A
Publication Date:
October 22, 2020
Filing Date:
April 11, 2019
Export Citation:
Assignee:
YAZAKI CORP
International Classes:
H02P5/46
Domestic Patent References:
| JP2012090509A | 2012-05-10 | |||
| JP2014222963A | 2014-11-27 |
Attorney, Agent or Firm:
Patent business corporation glory patent office