Skew motor driving circuit
US5578910A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1995 |
| Grant date | Nov 26, 1996 |
| Priority date | — |
| Expiry date | Jun 15, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/18
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
This invention relates to a skew motor driving circuit of satellite video receiver for eliminating a remaining voltage of ripple form generated at skew motor in a satellite video receiver such as SVR and the like. The invention is an apparatus for receiving a satellite video, a third transistor Q3 for executing on/off operation in response to control signal controlling a skew motor, a first transistor Q1 for supplying/cutting a skew motor input power 1 in conjunction with the operation of the third transistor, a fourth transistor Q4 for eliminating a remaining voltage remaining upon cutting a driving voltage supplied to said skew motor by an operation being contrary to the operation of said first and third transistors, and a second transistor Q2 for supplying skew pulses to the skew motor in response to the skew pulse signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.