Optically actuated and controlled dimmer type light switch
First Claim
1. A regulating device for regulating an electrical load comprising:
- a transmitter module having means to generate a pulsed signal, an infrared transmitter to receive said pulsed signal and to generate a pulsed infrared light signal,a receiver module having an infrared receiver to generate a pulsed signal in response to a reflected infrared light signal,a signal comparator module connected to said transmitter module and to said receiver module to receive both said pulsed signal from said receiver module and said pulsed signal from said transmitter module, means to compare said pulsed signals and to generate an output signal when both said pulsed signals are synchronized,processing means including phase shift circuit means operatively associated therewith, said processing means adapted to receive said output signal and process said output signal and thereby regulate power output to said electrical load.
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Accused Products
Abstract
An optically controlled dimmer type device which can be used to regulate the brightness of an incandescent lamp. The device can also be used to control other electrical loads such as a.c. type motors. One of the main characteristic of the device is that it is adapted to be optically controlled. The device includes a light emitting component adapted to emit light and a light receiving component positioned to receive the light reflected by an object from the light emitting component and to thereby generate an output signal. A processing circuit including a phase shift circuit is operatively associated to the light receiving component. The processing circuit is adapted to receive the ouput signal and process the output signal and thereby regulate power output to the electrical load.
51 Citations
17 Claims
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1. A regulating device for regulating an electrical load comprising:
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a transmitter module having means to generate a pulsed signal, an infrared transmitter to receive said pulsed signal and to generate a pulsed infrared light signal, a receiver module having an infrared receiver to generate a pulsed signal in response to a reflected infrared light signal, a signal comparator module connected to said transmitter module and to said receiver module to receive both said pulsed signal from said receiver module and said pulsed signal from said transmitter module, means to compare said pulsed signals and to generate an output signal when both said pulsed signals are synchronized, processing means including phase shift circuit means operatively associated therewith, said processing means adapted to receive said output signal and process said output signal and thereby regulate power output to said electrical load. - View Dependent Claims (2, 3, 4, 5)
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6. An optically controlled dimmer, said optically controlled dimmer being adapted to selectively control the power applied to an incandescent lamp, said power emanating from an AC power source, said AC power source having an AC phase shift angle, said optically controlled dimmer comprising:
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a circuit arrangement, said circuit arrangement comprising an optical sensor means for selectively responding to the optical presence of a reflective object by emitting a sensor output signal, an AC connecting means for connecting said circuit arrangement to said AC power source, a load connecting means for connecting said load to said circuit arrangement, a Triac-type component, said Triac-type component being connected in series with both said AC connecting means and said load connecting means, a phase shift circuitry for generating a phase shift circuitry output signal having a circuitry phase shift angle, said circuitry phase shift angle being shifted relatively to said AC phase shift angle, said phase shift circuitry being connected to said Triac-type component, a processing component for controlling the firing angle of said Triac-type component, said processing component including a built-in phase locked loop circuit, said processing component having a processing input and a processing output, said Triac-type component being connected to said processing output, said optical sensor means and said phase shift circuitry being both connected to said processing input, a protective casing for protectively enclosing said circuit arrangement. - View Dependent Claims (7)
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8. A circuit arrangement for use with a power regulating device to control power applied to a load, said power emanating from an AC power source, said AC power source having an AC phase shift angle, said circuit arrangement comprising:
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an optical sensor means for selectively responding to the optical presence of a reflective object by emitting a sensor output signal, an AC connecting means for connecting said circuit arrangement to said AC power source, a load connecting means for connecting said load to said circuit arrangement, a Triac-type component, said Triac-type component being connected in series with both said AC connecting means and said load connecting means, a phase shift circuitry for generating a phase shift circuitry output signal having a circuitry phase shift angle, said circuitry phase shift angle being shifted relatively to said AC phase shift angle, said phase shift circuitry being connected to said Triac-type component, a processing component for controlling the firing angle of said Triac-type component, said processing component including a built-in phase lock loop circuit, said processing component having a processing input and a processing output, said Triac-type component being connected to said processing output, said optical sensor means and said phase shift circuitry being both connected to said processing input. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification