IGBT/FET-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation
First Claim
1. A method of reducing energy consumption by an energy savings device comprising:
- receiving a predetermined amount of energy having an analog signal;
determining a zero crossing point of the analog signal;
identifying a positive half cycle and a negative half cycle of the analog signal;
reducing the predetermined amount of energy of the analog signal by providing pulse width modulation to the analog signal during the positive half cycle;
clamping a first back electromotive force associated with reducing the predetermined amount of energy of the analog signal during the positive half cycle;
reducing the predetermined amount of energy of the analog signal by providing pulse width modulation to the analog signal during the negative half cycle;
clamping a second back electromotive force associated with reducing the predetermined amount of energy of the analog signal during the negative half cycle; and
outputting a reduced amount of energy.
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Abstract
An IGBT/FET-based energy savings device, system and method wherein a predetermined amount of voltage below a nominal line voltage and/or below a nominal appliance voltage is saved, thereby conserving energy. Phase input connections are provided for inputting analog signals into the device and system. A magnetic flux concentrator senses the incoming analog signal and a volts zero crossing point detector determines the zero volts crossing point of the signal. The positive half cycle and negative half cycle of the signal are identified and routed to a digital signal processor for processing the signal. The signal is reduced by pulse width modulation and the reduced amount of energy is outputted, thereby yielding an energy savings for an end user.
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Citations
20 Claims
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1. A method of reducing energy consumption by an energy savings device comprising:
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receiving a predetermined amount of energy having an analog signal; determining a zero crossing point of the analog signal; identifying a positive half cycle and a negative half cycle of the analog signal; reducing the predetermined amount of energy of the analog signal by providing pulse width modulation to the analog signal during the positive half cycle; clamping a first back electromotive force associated with reducing the predetermined amount of energy of the analog signal during the positive half cycle; reducing the predetermined amount of energy of the analog signal by providing pulse width modulation to the analog signal during the negative half cycle; clamping a second back electromotive force associated with reducing the predetermined amount of energy of the analog signal during the negative half cycle; and outputting a reduced amount of energy. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-transitory computer-readable storage medium storing instructions which, when executed by an energy savings device having a processor, causes the processor to:
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receive a signal corresponding to a predetermined amount of energy having an analog signal; determine a zero crossing point of the analog signal; identify a positive half cycle and a negative half cycle of the analog signal; reduce the predetermined amount of energy of the analog signal by providing pulse width modulation to the analog signal during the positive half cycle; clamp a first back electromotive force associated with reducing the predetermined amount of energy of the analog signal during the positive half cycle; reduce the predetermined amount of energy of the analog signal by providing pulse width modulation to the analog signal during the negative half cycle; clamp a second back electromotive force associated with reducing the predetermined amount of energy of the analog signal during the negative half cycle; and generate a signal to output a reduced amount of energy. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An energy savings system for reducing energy consumption, comprising:
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an input connection that receives a predetermined amount of energy having an analog signal; an output connection that outputs a reduced amount of energy; and a microprocessor that communicates with the input connection, the output connection, and a computer-readable non-volatile memory having instructions stored thereon that, when executed by the microprocessor, cause the microprocessor to; receive a signal corresponding to the predetermined amount of energy having the analog signal; determine a zero crossing point of the analog signal; identify a positive half cycle and a negative half cycle of the analog signal; reduce the predetermined amount of energy of the analog signal by providing pulse width modulation to the analog signal during the positive half cycle; clamp a first back electromotive force associated with reducing the predetermined amount of energy of the analog signal during the positive half cycle; reduce the predetermined amount of energy of the analog signal by providing pulse width modulation to the analog signal during the negative half cycle; clamp a second back electromotive force associated with reducing the predetermined amount of energy of the analog signal during the negative half cycle; and generate a signal to output a reduced amount of energy. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification