US 10,692,334 B2 · Doorbell system with pulse-driven boost rectifier

Abstract

In some embodiments, a power supply in a doorbell system includes a boost rectifier circuit with a plurality of active devices arranged in a bridge topology that are configured to receive an AC input voltage, generate a DC output voltage by rectifying the AC input voltage, drive an electric load using the rectified DC voltage, and boost an amplitude of the AC input voltage. Two of the plurality of active devices in the boost rectifier circuit may be pulse driven and can control an operation of a mechanical or digital chime device. The chime device can include a solenoid and the boost rectifier circuit may utilize the solenoid as an energy storage element to facilitate the boosting of the amplitude of the AC input voltage. The boost rectifier circuit may boost the AC input voltage by at least a multiplication factor of two.

Claims20

Dependent claims

A method of operating a boost rectifier circuit of a doorbell system, the method comprising:

receiving measurement data corresponding to a measurement of an AC current signal driving an inductor of the doorbell system, the inductor coupled to an input of the boost rectifier circuit,
wherein the inductor is driven by an AC input voltage, and
wherein the inductor is operating as an energy storage element configured to facilitate the boosting of an amplitude of the AC input voltage by the boost rectifier circuit;
and
dynamically modifying a boosting profile of the AC input voltage based on:
the measured AC current signal passing through the inductor;
and
an amplitude of the AC input voltage,
wherein the boosting profile pulse shapes the AC current signal driving the inductor from a sinusoidal current waveform to a substantially square-wave current waveform.

6 more elements

A doorbell system comprising:

one or more processors;
and
one or more non-transitory computer-readable storage mediums that include instructions configured to cause one or more processors to perform operations including:
receiving measurement data corresponding to a measurement of an AC current signal driving an inductor of the doorbell system, the inductor coupled to an input of a boost rectifier circuit,
wherein the inductor is driven by an AC input voltage, and
wherein the inductor is operating as an energy storage element configured to facilitate the boosting of an amplitude of the AC input voltage by the boost rectifier circuit;
and
dynamically modifying a boosting profile of the AC input voltage based on:
the measured AC current signal passing through the inductor;
and
an amplitude of the AC input voltage,
wherein the boosting profile pulse shapes the AC current signal driving the inductor from a sinusoidal current waveform to a substantially square-wave current waveform.

9 more elements

Dependencies are inferred from the claim text.

Doorbell system with pulse-driven boost rectifier

Life of this patent

Doorbell system with pulse-driven boost rectifier

Life of this patent

Abstract

Claims20