Timing control for AC power circuit

Details Timing control for AC power circuit Timing control for AC power circuit

1976-12-30

1978-10-17

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

219 1055B, 323 24, H05B 906

Patent

active

041211499

ABSTRACT:
A triac functions as an electronic switch to intermittently connect the AC power circuit to a load, and is directly connected to the output of a 1422 integrated circuit timer which turns the triac on and off according to a controlled cycle. The timer functions as an astable multivibrator which alternately produces high or low output voltages responsive to movement of a control voltage between high and low trigger voltage levels. A charging circuit, including a capacitor and variable resistor, is connected directly between the DC power supply and the timer input to produce an increasing control voltage; and the control voltage is discharged through the timer to produce a decreasing control voltage which determines the duty cycle. The duty cycle is variable by means of a variable resistor in the charging and discharge circuits; and the control includes calibration for the time base.

REFERENCES:
patent: 3103618 (1963-09-01), Slater
patent: 4041267 (1977-08-01), Wechsler

Affiliated with

Also associated with

Rating

Timing control for AC power circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Timing control for AC power circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Timing control for AC power circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-377954