Methods and apparatus for DC-DC soft start
US10044271B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Apr 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/00006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for DC-DC soft start are disclosed herein, an example DC-DC voltage converter includes at least two transistors to at least charge or discharge an inductor from an input source and to ground respectively, the inductor to output an output voltage. A synchronize and track circuit generates a bias current based on a reference voltage. An amplifier generates an error current based on an output voltage and the reference voltage. An oscillator oscillates at a switching frequency based on the bias current and the error current. A multiplexer selects between (1) a first input signal generated based on the switching frequency, and (2) a second input signal generated based on the switching frequency and the error current, for output as a reset signal. A latch provides a control signal to the at least two transistors based on the reset signal and the switching frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.