Chopper-type regulator circuit and chopper-type regulator IC
US5670866A · kind A · utility
7Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1995 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | Nov 28, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A chopper-type regulator circuit includes an output transistor composed of a PNP-type transistor, and a control section for controlling switching of the output transistor based upon a voltage difference between a reference voltage and an output voltage. The control section is provided with a base current output terminal for supplying a base current of the output transistor to a load connected to the chopper-type regulator circuit. This makes it possible to reduce a loss of the circuit, thereby improving efficiency of the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.