Non-isolated buck converter with input current steering
US6008999A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 1998 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Aug 7, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A non-isolated buck converter with input and output current steering. The input current steering is connected across the input switching transistor and steers input current to the output when the switch is turned off, thereby preventing the input current from pulsating between on and off states. The output current steering is connected across the low-pass output filter and further steers the steered input current back to the input dc voltage source. This prevents the steered input current from adding to the normal output current and thereby producing a pulsating output current. The ratio of the output dc voltage to the input dc voltage is proportional to the switching duty cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.