Patent ID: 8879140
Filing Date: 2014-11-04
Classification: G02F,H02M

Abstract:
1. A system for supplying DC power derived 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, the at least one hold-up circuit comprising: a first hold-up circuit configured to convert a PWM power supplied from the PWM power source to a first DC power and supply the first DC power to a microcontroller; and a second hold-up circuit configured to convert the PWM power supplied from the PWM power source to a second DC power, and supply the second DC power to a drive circuit; and wherein the microcontroller is configured to control the drive circuit by regulating a DC voltage from the drive circuit to a load, wherein the load is an electrochromic (EC) mirror element.