Title :
High efficiency automotive power supply with hysteretic current mode controller
Author :
Jurasek, Gordan ; Levin, Gedaly ; Sisson, Paul ; Repplinger, Scott
Author_Institution :
Cherry Semicond. Corp., East Greenwich, RI, USA
Abstract :
A switched mode power supply for an automotive power control module with a novel hysteretic current mode control (HCMC) controller is presented. The HCMC operation principle is described and a method of reducing switching frequency variation is analyzed. Experimental results and critical waveforms of the power switching regulator are shown. Several monitoring and indication functions are designed into the controller to interface with the rest of the system. The controller includes a linear regulator to provide power for memory registers while the system is in the “key-off” state
Keywords :
automotive electronics; electric current control; field effect transistor switches; power control; power field effect transistors; power integrated circuits; power semiconductor switches; switched mode power supplies; switching circuits; automotive power supply; critical waveforms; hysteretic current mode controller; linear regulator; memory registers; power switching regulator; switched mode power supply; switching frequency variation; Automotive engineering; Control systems; Current supplies; Hysteresis; Monitoring; Power control; Power supplies; Regulators; Switched-mode power supply; Switching frequency;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1996. APEC '96. Conference Proceedings 1996., Eleventh Annual
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-3044-7
DOI :
10.1109/APEC.1996.500540
