Functional Description of Inverter Drive Circuit Board A1A2 (1974 Model Only)

TM 11-6130-377-14

(1) When DC input power is connected to the

5-4. Functional Description of Inverter Drive Circuit

system, the resulting +10- to +12-volt input is reduced by

Board A1A2 (1974 Model Only)

the dc power supply to a regulated +5 vdc. The oscillator

provides a 15.36 kHz signal that is divided down to 60 Hz

a. General. The inverter drive circuit board contains

by the frequency divider. This 60-Hz signal operates the

11 functional circuits (b through I below).

SCR driver circuit which provides gate drive to the power

SCR's (not on the circuit board).

Change 1

5-4.2