Drive control device for motor actuator in automobile air conditioner
US4878001A · kind A · utility
10Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1988 |
| Grant date | Oct 31, 1989 |
| Priority date | — |
| Expiry date | Mar 28, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D3/127
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a drive control device for a motor actuator for use with an automobile air conditioner. The drive control device for a motor actuator is formed by using a transistor, and the supply of current from a power source to a motor constituting the drive unit of the motor actuator is carried out by the switching operation of a single transistor. A safety circuit is added to the control switches for applying a signal to the control device for the motor actuator, the safety circuit operates to always make the air condition in the compartment to be set required air conditioning mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.