3839668 is referenced by 17 patents and cites 8 patents.

A constant current converter utilizing a free running inverter employing current feedback. The inverter output current is sampled and used to control a switching regulator synchronized to the inverter, so that the supply voltage fed to the inverter holds its output current and consequently its output frequency substantially constant.

Title
Electronic converter with regulated output current and frequency
Application Number
05/369,475
Publication Number
3839668
Application Date
June 13, 1973
Publication Date
October 1, 1974
Inventor
Black David Harold Alexander
Agent
Mowle John E
Assignee
Bell Northern Research
IPC
H02m 07/00
H02M 03/24
H02M 03/338
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