Current regulating switch circuit
First Claim
1. A regulating switch circuit for conditioning operation of a first load upon operation of a second load wherein the first load and the second load consume electrical energy from a power source, the regulating switch circuit comprising:
- means for detecting the operation of the second load;
means for sensing an amount that a parameter of the electrical energy supplied to at least one of the first and second loads exceeds a predetermined level;
a load control device coupling at least one of the first and second loads to the power source, wherein the load control device has a control terminal; and
a control circuit coupled to the control terminal of the load control device and responsive to the sensing means and the detecting means to variably adjust the electrical energy supplied by the power source to at least one of the first and second loads to limit the parameter of the electrical energy to the predetermined level.
6 Assignments
0 Petitions
Accused Products
Abstract
A regulating switch circuit for conditioning operation of a first load upon operation of a second load wherein the first load and the second load consume electrical energy from a power source includes a detecting means for detecting the operation of the second load and a sensing means for sensing an amount a parameter of the electrical energy supplied to at least one of the first and second loads exceeds a predetermined level. A load control device couples at least one of the first and second loads to the power source wherein the load control device has a control terminal. A control circuit is coupled to the control terminal of the load control device and is responsive to the sensing means and the detecting means to variably adjust the electrical energy supplied by the power source to at least one of the first and second loads to limit the parameter of the electrical energy to the predetermined level.
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Citations
26 Claims
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1. A regulating switch circuit for conditioning operation of a first load upon operation of a second load wherein the first load and the second load consume electrical energy from a power source, the regulating switch circuit comprising:
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means for detecting the operation of the second load; means for sensing an amount that a parameter of the electrical energy supplied to at least one of the first and second loads exceeds a predetermined level; a load control device coupling at least one of the first and second loads to the power source, wherein the load control device has a control terminal; and a control circuit coupled to the control terminal of the load control device and responsive to the sensing means and the detecting means to variably adjust the electrical energy supplied by the power source to at least one of the first and second loads to limit the parameter of the electrical energy to the predetermined level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A regulating switch circuit for conditioning operation of a first load upon operation of a second load wherein the first and second loads draw a total magnitude of current from a power source, the regulating switch circuit comprising:
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means for detecting the operation of the second load; means for developing a correction signal having a voltage magnitude representative of an amount that the total magnitude of current exceeds a predetermined level; a switching device coupling the first load to the power source in accordance with a duty cycle of the switching device, wherein the switching device has a control terminal; and a phase control circuit coupled to the control terminal of the switching device and responsive to the correction signal and the detecting means to variably adjust the duty cycle of the switching device to limit the total magnitude of current to the predetermined level. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A regulating switch circuit for conditioning operation of a first load upon operation of a second load wherein the first and second loads draw a total magnitude of current from a power source, the regulating switch circuit comprising:
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a triac coupling the first load to the power source to an extent determined by a duty cycle of the triac; a first current sensor disposed between the power source and the first and second loads wherein the first current sensor generates a signal representative of the total magnitude of current; a second current sensor coupling the second load to the power source; a summer coupled to the first current sensor; a phase control circuit responsive to both the summer and the second current sensor for variably adjusting the duty cycle of the triac to an extent necessary to limit the total magnitude of current to a predetermined level. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification