Protective circuit
US5548462A · kind A · utility
3Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Oct 26, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H11/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A protective circuit unit includes an analog switch connected to a DC power line which is connected to the power source circuit of said electronic device and a main constant voltage diode connected in parallel to the DC power line, wherein an input applied to a control terminal of the analog switch is controlled by current flowing in the constant voltage diode so as to turn off the analog switch when a supply voltage is higher than a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.