Electric circuit control system using logic device
First Claim
Patent Images
1. An electrical load control circuit for remotely selectively energizing or de-energizing an electrical load which comprises:
- (a) an AC supply source;
(b) an electrical load;
(c) a DC operated AC control means for controlling the power applied to said electrical load from said AC supply source;
(d) said AC control means capable of providing at least 25 watts of power;
(e) a DC powered flip-flop circuit means having a toggle input and producing a first DC signal in its one output state and a second DC signal in its other output state;
(f) the output of said flip-flop circuit means being connected to operate said AC control means;
(g) a first manually operable switch electrically connected to control the toggle input of said flip-flop circuit means so that operation of said switch will change the state of energization of said electrical load;
(h) a DC power supply for converting the AC from the said AC supply source to DC, said DC power supply connecting to and providing power to said DC powered flip-flop when said AC supply source is functioning; and
(i) a battery connected to said DC powered flip-flop for providing power to said DC powered flip-flop when said AC supply source is not functioning.
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Abstract
A circuit is disclosed which is suitable for controlling lighting in a building from a multiple number of points. AC current to light bulbs is controlled by a triac which in turn is controlled by the output of an optical coupler which is controlled by the output of a logic device. The output of said logic device is connected to control the input to the triac. Switches connecting to the input of the logic device each can independently determine energization or deenergization of the light bulbs.
33 Citations
18 Claims
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1. An electrical load control circuit for remotely selectively energizing or de-energizing an electrical load which comprises:
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(a) an AC supply source; (b) an electrical load; (c) a DC operated AC control means for controlling the power applied to said electrical load from said AC supply source; (d) said AC control means capable of providing at least 25 watts of power; (e) a DC powered flip-flop circuit means having a toggle input and producing a first DC signal in its one output state and a second DC signal in its other output state; (f) the output of said flip-flop circuit means being connected to operate said AC control means; (g) a first manually operable switch electrically connected to control the toggle input of said flip-flop circuit means so that operation of said switch will change the state of energization of said electrical load; (h) a DC power supply for converting the AC from the said AC supply source to DC, said DC power supply connecting to and providing power to said DC powered flip-flop when said AC supply source is functioning; and (i) a battery connected to said DC powered flip-flop for providing power to said DC powered flip-flop when said AC supply source is not functioning. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An electrical load control circuit for remotely selectively energizing or de-energizing an electrical load which comprises:
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(a) an AC supply source of at least about 120 volts at about 60 Hertz; (b) an electrical load; (c) a DC operated AC control means for controlling the power applied to said electrical load from said AC supply source, said AC control means being capable of controlling at least 25 watts of power; (d) said AC control means including an optical coupling means for providing electrical isolation between the input and the output of said AC control means; (e) a DC power supply for converting the AC from the AC supply source to DC, said DC power supply providing power to DC operated AC control means; and (f) a first manually operable switch electrically connected to control the optical coupler. - View Dependent Claims (14, 15, 16)
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17. In a building having an electrical outlet controlled from two separate locations with a manually operable switch located at each of the two locations, the building being supplied with an AC supply source of about 120 volts at 60 Hertz and having the ability to supply at least 25 watts of power to the electrical outlet, the improvement comprising a control circuit which includes:
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(a) a DC operated AC control means for controlling the power applied to said outlet from said AC supply source; (b) a DC powered flip-flop circuit means having a toggle input for producing a first DC signal in its one output state and a second DC signal in its other output state; (c) the output of said flip-flop circuit means being connected to oerate said AC control means; (d) one of the manually operable switches electrically connected to control the toggle input of said flip-flop circuit means so that operation of said switch will change the state of the output of said flip-flop circuit means; and (e) the other of the manually operable switches electrically connected to control the toggle input of said flip-flop circuit means so that operation of said other switch will change the state of the output of said flip-flop circuit means. - View Dependent Claims (18)
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Specification