Invention Grant
US08970265B2 Systems and methods for driving a load under various power conditions
有权
在各种功率条件下驱动负载的系统和方法
- Patent Title: Systems and methods for driving a load under various power conditions
- Patent Title (中): 在各种功率条件下驱动负载的系统和方法
-
Application No.: US13827074Application Date: 2013-03-14
-
Publication No.: US08970265B2Publication Date: 2015-03-03
- Inventor: James McIntosh , Christy Looby
- Applicant: Allegro Microsystems, LLC
- Applicant Address: US MA Worcester
- Assignee: Allegro Microsystems, LLC
- Current Assignee: Allegro Microsystems, LLC
- Current Assignee Address: US MA Worcester
- Agency: Daly, Crowley, Mofford & Durkee, LLP
- Main IPC: H03K17/00
- IPC: H03K17/00 ; H02M1/08 ; H03K17/0812

Abstract:
An electronic circuit for driving an electronic switch includes a first voltage terminal coupled to receive a first voltage from a power supply and a second voltage terminal coupled to receive a second voltage from the power supply. A driver circuit is configured to drive the voltage at a control terminal of the electronic switch to an intermediate voltage level in order to turn on the electronic switch during a high or normal voltage condition. A clamp circuit is configured to clamp the voltage at the control terminal of the electronic switch to the second voltage terminal in order to turn on the electronic switch during a low voltage condition, so that the electronic switch can enhance power provided to a load during the low voltage condition. A low voltage detection circuit detects the low voltage condition and provides a signal to activate the clamp circuit.
Public/Granted literature
- US20140266323A1 Systems and Methods for Driving a Load Under Various Power Conditions Public/Granted day:2014-09-18
Information query