Title :
Use of current injected control in solenoid focusing coil power supplies
Author :
Schultz, C.P. ; Gilinson, R.A.
Author_Institution :
Raytheon Co., Wayland, MA, USA
Abstract :
The use of current-injected control in the design of solenoid power supplies is discussed. Such a supply is required to provide a constant current to a large inductive load. The control to output (power stage) transfer characteristics are worked out for a generalized load. The location of the poles and zeros and the effect of load inductance on the inner current loop are investigated. This control technique is seen to have inherent feedforward capability, and therefore to have better line rejection than the standard voltage-mode converter. This is also investigated for a solenoid converter using current-mode control. The results are verified and compared using a SPICE computer simulation
Keywords :
circuit analysis computing; digital simulation; electric current control; poles and zeros; power supplies to apparatus; software packages; solenoids; SPICE computer simulation; circuit analysis computing; current injected control; design; feedforward; inductive load; line rejection; poles and zeros; power supplies to apparatus; software packages; solenoid focusing coil; transfer characteristics; Coils; Filters; Frequency; Inductance; Power supplies; Solenoids; Switched-mode power supply; Switches; Topology; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1989. APEC' 89. Conference Proceedings 1989., Fourth Annual IEEE
Conference_Location :
Baltimore, MD
DOI :
10.1109/APEC.1989.36960
