Title:
SYSTEM AND METHOD FOR PULSE-WIDTH MODULATION USING ADJUSTABLE COMPARISON CRITERION
Document Type and Number:
Japanese Patent JP2019205155
Kind Code:
A
Abstract:
To provide a pulse-width modulation control circuit capable of increasing the control precision without increasing an operating frequency.SOLUTION: A pulse-width modulation control circuit includes a first transistor and a signal generator. The first transistor includes a first terminal coupled to a power source, and a second terminal coupled to a first input of a controlled component. The signal generator includes a first node coupled to a gate of the first transistor. In the signal generator, the pulse-width modulation receives a comparison value 3322 and a comparison criterion 3324, 3326, and compares the comparison value to a counter value 3304 on the basis of the comparison criterion. In response to the comparison value satisfying the comparison criterion with respect to the counter value, a control signal is sent to the gate of the first transistor to generate a pulse edge of a pulse of a pulse-width modulated signal.SELECTED DRAWING: Figure 33
Inventors:
DOUGLAS C CAMERON
DWAYNE C MERNA
DWAYNE C MERNA
Application Number:
JP2019054855A
Publication Date:
November 28, 2019
Filing Date:
March 22, 2019
Export Citation:
Assignee:
BOEING CO
International Classes:
H03K7/08
Attorney, Agent or Firm:
Sonoda/Kobayashi Patent Business Corporation