Figure 5-46. 12-volt Regulator Card, Clock Generator and Over/Under Voltage Detector Circuits

T.O. 31W2-2GSC24-2

TM 11-5805-688-14-1

NAVELEX 0967-LP-545-3010

Figure 5-46. 12-volt Regulator Card, Clock Generator and Over/Under Voltage Detector Circuits - Block Diagram

5-627. Basically, the four identical +5-volt regulator

two voltages are applied to a voltage comparator. An

circuits are similar to the 12-volt regulator circuit

increase in either voltage causes the output voltage from

the voltage comparator to the error amplifier to increase.

discussed in this paragraph. Therefore, the +5-volt

A decrease in either voltage causes the output voltage

regulator circuits are not discussed in detail in the block

diagram discussion. The 12-volt regulator circuit (figure

from the voltage comparator to the error amplifier to

decrease. An increase in voltage to the error amplifier

5-47) monitors the +12V Reg and -12V Reg outputs and

causes a higher (more positive) threshold voltage to be

generate control signals as necessary to regulate the two

applied to the high-speed comparator.

outputs within 1.0 percent of +12 and -12 volts. The

Change 2 5-170