Touch control arrangement for an electrical appliance

Patent · Tue Dec 30 04:00:00 EST 1986

OSTI ID:7123866

Payne, T R; Schneider, D A

A control circuit is described for an appliance of the type incorporating an electrical load adapted for energization by an external power supply the circuit comprising: input means comprising a plurality of user actuable switch means including a first condition selection switch means and a second condition selection switch means; an electronic controller for controlling energization of the electrical load in accordance with user actuation of the input means, the controller including scanning means operative to periodically enable at least some of the switch means including the first condition selection switch means to detect user actuation thereof; means for constantly enabling the second condition selection switch means; a power control relay operative in a first state to enable energization of the electrical load by the external power supply and in a second state to prevent energization of the load; electronic latch circuit means switchable between a first state and a second state, the latch circuit means being effective in its first state to establish the first state for the relay and in its second state to establish the second state for the relay; the first condition selection switch means being operative when actuated and enabled to switch the latch means to its first state; the second condition selection switch means being operative when actuated to switch the latch circuit means in its second state independent of the scanning means.

• Assignee: General Electric Co., Louisville, KY
• Patent Number(s): US 4633067
• OSTI ID: 7123866
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
APPLIANCES
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
ELECTRIC APPLIANCES
ELECTRICAL EQUIPMENT
ELECTRON SCANNING
ELECTRONIC CIRCUITS
EQUIPMENT
POWER INPUT
RELAYS
SWITCHES