Step-up power supplying circuit
US5086383A · kind A · utility
3Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 1991 |
| Grant date | Feb 4, 1992 |
| Priority date | — |
| Expiry date | Apr 30, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/155
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
After an AC voltage was rectified and smoothed, it is stepped up by a chopper circuit. Another winding is magnetically coupled to a choke coil of the chopper circuit so as to have the same polarity. An inductance for adjusting a current is connected serially with another winding. A current of a phase opposite to a phase of a current flowing in the choke coil is generated in another winding, thereby setting off a ripple current flowing in an input smoothing capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.