Invention Grant
- Patent Title: Power supply controller and related methods
-
Application No.: US16372938Application Date: 2019-04-02
-
Publication No.: US10686365B2Publication Date: 2020-06-16
- Inventor: Zdenek Pfof , Jiri Bubla , Ivo Vecera
- Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Applicant Address: US AZ Phoenix
- Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Current Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Current Assignee Address: US AZ Phoenix
- Agency: Adam R. Stephenson, Ltd.
- Main IPC: H02M1/32
- IPC: H02M1/32 ; H02M1/36 ; H02M1/00

Abstract:
A power supply controller having a shortened reset time due to a small hiccup voltage includes an electrical circuit providing a repeated voltage hiccup of a supply voltage of the controller of a switched-mode power supply (SMPS) when the controller enters a latched state. A plurality of comparators each have an input coupled with the controller supply voltage. A multiplexer and two latches are included, each coupled with one or more comparator outputs, and a restart controller is coupled with an output of one of the latches. The restart controller in various implementations toggles a switch to activate and deactivate a current sink to create the supply voltage hiccup. In other implementations, the switch is excluded and the restart controller toggles a voltage startup transistor to couple and decouple a voltage source with the supply voltage to create the voltage hiccup.
Public/Granted literature
- US20190229610A1 POWER SUPPLY CONTROLLER AND RELATED METHODS Public/Granted day:2019-07-25
Information query