Zeno phenomenon avoidance in power controller handoff
US9998001B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2017 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Mar 22, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/618
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A control circuit eliminates the Zeno phenomenon in a power supply controller while transferring control from a primary side controller to a secondary side controller. The primary side controller generates a feedback voltage (e.g., threshold voltage) that is input to a comparator. An output node voltage of the control circuit is fed back to the linear amplifier to be compared with the threshold voltage. While the output node voltage is less than the threshold voltage, a charge pump is coupled to the output node of the control circuit. After the output node voltage has toggled around the threshold voltage a number of times, the comparator output node is coupled to the output node of the control circuit and the charge pump is decoupled from the output node. When the output node voltage has discharged to be equal to the threshold voltage, control is handed off from the primary side controller to the secondary side controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.