Pulse width modulator and switching amplifier
US8970269B2 · kind B2 · utility
1Cited by
2References
5Claims
0Family size
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Key dates
| Filing date | Dec 18, 2013 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Dec 18, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A pulse width modulation signal with a less distortion component that is not influenced by a common-mode noise or an offset voltage is generated. Pulse signal generation circuits 6, 7 generate pulse signals S1, S2 whose pulse widths are discharge times t1, t2 of integrators 3, 4, respectively, a PWM signal generation circuit 8 detects discharge end timings of the integrators 3, 4 based on the pulse signals S1, S2, and a pulse whose pulse width is a time between discharge end timing of one of the integrators 4 and discharge end timing of the other one of the integrators 3 is generated so as to be output as a PWM signal Spwm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.