Phase to amplitude H-Bridge switching circuit
US7092269B1 · kind B1 · utility
4Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2004 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Feb 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/53878
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A high power AM-band transmitter amplifier comprises four switches in an H-Bridge configuration and operates by adjusting the duty cycle of the voltage waveform on a transformer. The duty cycle is adjusted by changing the phase relationship between the diagonal switch pairs. An embodiment of the amplifier operates efficiently by the addition of a current source that may comprise inductor and capacitor circuits to assure zero voltage switching of all the switches. The inventive H-Bridge configuration can also be utilized in a phase modulated power supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.