Charge injection circuit for instantaneous transient support
US9729056B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2015 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Jul 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1566
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage regulator circuit includes a voltage regulator electrically coupled to a load through an output inductor and operable to regulate a voltage applied to the load, an output capacitor electrically coupled to a node between the inductor and the load, and a charge injection circuit capacitively coupled to the node. The output capacitor is configured to discharge energy stored in the capacitor to the load during step-up transient events at the load and absorb energy from the load during step-down transient events at the load. The charge injection circuit is operable to inject charge onto the output capacitor during the step-up transient events and absorb charge from the output capacitor during the step-down transient events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.