US 10,312,794 B2 · Chopper assembly and controlling method thereof

Abstract

A chopper assembly including at least two chopper units, and a controlling unit configured to generate a control signal for controlling an activation of the corresponding chopper unit in cycle. The activations of the at least two chopper units are controlled by the controlling unit to be either initially offset by a phase shift or adjusted to have a phase shift after a predefined time duration, the phase shift indicating a time difference between rising edges or between falling edges of respective pulses of different signals. The chopper assembly according to the present disclosure effectively mitigates the negative impact to various components within the circuit. Moreover, by controlling the duty cycles of the control signals, loads of each of the resistors will be equal.

Claims18

Dependent claims

A chopper assembly, comprising:

at least two chopper units each including a controlling unit configured to generate a control signal for controlling an activation of the corresponding chopper unit in cycle and including:
a reference unit configured to generate a reference signal, and
a phase controlling unit configured to control a phase shift of the control signal based on the reference signal for the corresponding chopper unit and the control signal for a different chopper unit,
wherein the activations of the at least two chopper units are controlled by the controlling units to be either initially offset by the phase shifts or adjusted to have the phase shifts after a predefined time duration, the phase shifts indicating a time difference between rising edges or between falling edges of respective pulses of different signals.

1 more element

A method of controlling a chopper assembly including at least two chopper units, the method comprising:

generating a control signal for each of the at least two chopper units in order to control an activation of the corresponding chopper unit in cycle;
controlling the activations of the at least two chopper units to be either initially offset by a phase shift or adjusted to have a phase shift after a predefined time duration, the phase shift indicating a time difference between rising edges or between falling edges of respective pulses of different signals;
generating a reference signal for each of the at least two chopper units;
and
controlling the phase shift of the control signal for the corresponding chopper unit based on the reference signal for the corresponding chopper unit and the control signal for a different chopper unit.

2 more elements

Dependencies are inferred from the claim text.

Chopper assembly and controlling method thereof

Life of this patent

Chopper assembly and controlling method thereof

Life of this patent

Abstract

Claims18