Two-wire power supply electronic switch

Details Two-wire power supply electronic switch Two-wire power supply electronic switch

1997-09-24

1998-11-17

Wong, Peter S.

Electric power conversion systems

Current conversion

With starting arrangement

363 86, 363128, 363 54, H02M 112, H02M 542, H02M 7155, H02H 7125

Patent

active

058385550

ABSTRACT:
A two-wire power supply switch connected in series with a load between two poles of an alternating current mains electrical power supply conventionally includes a main triac between two terminals of the switch which is turned on by the conduction of an optotriac with a time-delay relative to the zero crossing of the voltage between the switch terminals determined by the breakdown voltage of a series of Zener diodes. The switch includes a power supply unit with a rectifier bridge connected to one terminal directly and connected to the other terminal via a capacitor. An auxiliary triac shunting the capacitor is turned on by the optotriac on each zero crossing of the voltage between the switch terminals. This optimizes conditions when the switch is open and when the switch is closed separately.

REFERENCES:
patent: 4321662 (1982-03-01), Yokoyama
patent: 4910654 (1990-03-01), Forge
patent: 5303137 (1994-04-01), Peterson
H. Hodgson--Electronic Engineering "A triac assisted noiseless power switch concept" vol. 61, No. 753, Sep. 1, 1989, pp. 25/26 XP000066064 *p. 26, left hand col., line 21--right hand col., line 26, figure 3*.

Affiliated with

Also associated with

Rating

Two-wire power supply electronic switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two-wire power supply electronic switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-wire power supply electronic switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-890940