Step-up step-down converter device
US9515557B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2015 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Apr 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1582
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a step-up step-down converter device, a diode is connected in parallel to a switch connecting a positive pole side and a negative pole side for stepping up and stepping down an input voltage, a diode is connected in parallel to a switch in a positive pole side of a closed circuit constructed between an input direct voltage and an output side load, and a control circuit detecting an output voltage generates 1st Phase PWM and 2nd Phase PWM obtained by logically adding and multiplying two difference values having phase difference in comparison with a triangle waveform signal which is 180 degrees different in phase from an error signal based on a difference value between the output voltage and a target reference voltage, and alternately turns on and off switches respectively by using 1st Phase PWM or 2nd Phase PWM at the step-down or step-down operation time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.