SYSTEM AND METHOD FOR PROVIDING DC POWER TO AN OUTSIDE ELECTROCHROMIC MIRROR (OEC) USING A PULSE WIDTH MODULATED (PWM) INPUT
First Claim
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1. A system for supplying DC power from a pulse width modulated (PWM) source comprising:
- a connector configured to be in electrical communication with a PWM power source;
at least one hold-up circuit in electrical communication with the connector, wherein the at least one hold-up circuit is configured to convert electrical power supplied from the PWM power source to DC power, and supply the DC power to a drive circuit; and
wherein a microcontroller is configured to control the drive circuit by supplying the DC power from the drive circuit to a load.
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Abstract
A power supply for supplying direct current (DC) power from a pulse width modulated (PWM) source includes a connector configured to be in electrical communication with a PWM power source. A hold-up circuit is in electrical communication with the connector and is configured to convert electrical power supplied from the PWM power source to DC power. This DC power is supplied to a drive circuit where a microcontroller is configured to control the drive circuit by supplying the DC power from the drive circuit to a load.
6 Citations
20 Claims
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1. A system for supplying DC power from a pulse width modulated (PWM) source comprising:
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a connector configured to be in electrical communication with a PWM power source; at least one hold-up circuit in electrical communication with the connector, wherein the at least one hold-up circuit is configured to convert electrical power supplied from the PWM power source to DC power, and supply the DC power to a drive circuit; and wherein a microcontroller is configured to control the drive circuit by supplying the DC power from the drive circuit to a load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicular power supply system for supplying DC power from a pulse width modulated power source comprising:
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a connector configured to be in electrical communication with a PWM power source provided by the on/off keying of a voltage source in a vehicle; a first hold-up circuit for converting the PWM power source to a DC power supplied to at least one microcontroller; a second hold-up circuit for converting the PWM power source to DC power source supplied to an electrochromic (EC) mirror drive circuit; and wherein the microcontroller is configured to control the drive circuit by supplying DC power from the drive circuit to an EC mirror based upon the pulse width of the PWM power source. - View Dependent Claims (10, 11, 12, 13)
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14. A method for supplying DC power from a pulse width modulated (PWM) source comprising the step of:
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receiving PWM power from a PWM power source; converting the PWM power source to DC power source; supplying DC power to a drive circuit; and controlling the drive circuit for supplying a source of DC power to a load. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification