Two terminal line voltage thermostat

Details Two terminal line voltage thermostat Two terminal line voltage thermostat

1992-11-24

1994-04-19

Paschall, Mark H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219508, 219494, 219519, 219509, 236 78A, H05B 102

Patent

active

053047818

ABSTRACT:
A two terminal line voltage thermostat includes a switch which connects one side of the line voltage to a heater load (that it drives) such as a baseboard heater with the other side of the heater being connected to the other side of the line. Common full wave rectifier components drives both a relay coil and the remaining electronics of the thermostat. In addition, an arc suppressing triac across the switch while necessarily connected to the primary side of a transformer is directly driven from the secondary which is ungrounded; the primary also provides choking for the triac.

REFERENCES:
patent: 4776514 (1988-11-01), Johnstone et al.

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