Eliminating mechanical chime hum

A circuit for powering a video doorbell in signal communication with a chime that outputs audio in response to a button on the video doorbell being pressed, the circuit comprising:

• a rectifier circuit configured to:
• receive a first voltage signal generated based on a power source;
• and
• generate a second voltage signal based on the first voltage signal;
• a boost circuit that uses the second voltage signal to generate a high-voltage direct-current (DC) signal for charging a capacitor without generating a peak current that triggers a particular noise output from the chime, wherein the boost circuit charges the capacitor without generating the peak current at least by charging the capacitor over a time, T1, that corresponds to a duration of a full input voltage cycle;
• and
• a converter circuit that generates a low-voltage power signal based on the high-voltage DC signal and a charge stored at the capacitor,
• wherein the low-voltage power signal is for powering a plurality of components of the video doorbell.

A method implemented using a circuit for powering a video doorbell in signal communication with a chime that outputs audio in response to a button on the video doorbell being pressed, the method comprising:

• receiving, by a rectifier circuit, a first voltage signal generated based on a power source;
• rectifying, by the rectifier circuit, the first voltage signal;
• generating, by the rectifier circuit, a second voltage signal in response to rectifying the first voltage signal;
• generating, by a boost circuit and using the second voltage signal, a high-voltage direct-current (DC) signal for charging a capacitor without generating a peak current that triggers a particular noise output from the chime, wherein the boost circuit is coupled to, and spaced apart from, the rectifier circuit;
• generating, by a converter circuit, a low-voltage power signal based on the high-voltage DC signal and a charge stored at the capacitor;
• and
• powering, by the circuit, a plurality of components of the video doorbell based on the low-voltage power signal.

A method implemented using a circuit for powering a video doorbell in signal communication with a chime that outputs audio in response to a button on the video doorbell being pressed, the method comprising:

• receiving, by a rectifier circuit, a first voltage signal generated based on a power source;
• generating, by the rectifier circuit, a second voltage signal based on the first voltage signal;
• generating, by a boost circuit and using the second voltage signal, a high-voltage direct-current (DC) signal for charging a capacitor without generating a peak current that triggers a particular noise output from the chime, wherein the boost circuit charges the capacitor without generating the peak current at least by charging the capacitor over a time, T1, that corresponds to a duration of a full input voltage cycle;
• generating, by a converter circuit, a low-voltage power signal based on the high-voltage DC signal and a charge stored at the capacitor;
• and
• powering, by the circuit, a plurality of components of the video doorbell based on the low-voltage power signal.

A non-transitory machine-readable storage device storing instructions for using a circuit to power a video doorbell in signal communication with a chime that outputs audio in response to a button on the video doorbell being pressed, the instructions being executable by a processing device to cause performance of operations comprising:

• receiving, by a rectifier circuit, a first voltage signal generated based on a power source;
• rectifying, by the rectifier circuit, the first voltage signal;
• generating, by the rectifier circuit, a second voltage signal in response to rectifying the first voltage signal;
• generating, by a boost circuit and using the second voltage signal, a high-voltage direct-current (DC) signal for charging a capacitor without generating a peak current that triggers a particular noise output from the chime, wherein the boost circuit is coupled to, and spaced apart from, the rectifier circuit;
• generating, by a converter circuit, a low-voltage power signal based on the high-voltage DC signal and a charge stored at the capacitor;
• and
• powering, by the circuit, a plurality of components of the video doorbell based on the low-voltage power signal.