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Title: Power supply circuit with multiple stages for converting high voltage to low voltage and power train having the same

Patent ·
OSTI ID:1986663

A power supply circuit for converting a first voltage to a second voltage where the first voltage is greater than the second voltage, and a power train having the same, are provided. The power supply circuit may have multiple stages and each stage of the power supply circuit may include a first circuit block configured to provide a start-up power to a second circuit block; a second circuit block configured to generate a Pulse-Width-Modulation (PWM) signal that controls a pulse duration of a transistor; a third circuit block configured to activate or deactivate the transistor based on the PWM signal; a fourth circuit block configured to reset a magnetic flux in a transformer to a zero state when the transistor is deactivated; and a fifth circuit block configured to maintain an output of a stage below a predetermined value by adjusting a voltage across the transformer.

Research Organization:
Deere & Company, Moline, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0006521
Assignee:
Deere & Company (Moline, IL)
Patent Number(s):
11,463,007
Application Number:
16/990,238
OSTI ID:
1986663
Resource Relation:
Patent File Date: 08/11/2020
Country of Publication:
United States
Language:
English

References (13)

Switching Power Controller and System patent-application April 2011
Light Tube Apparatus patent-application October 2021
Apparatus, System and Method for Cascaded Power Conversion patent-application February 2010
Auxiliary Power Supply Apparatus and Method patent-application February 2019
Transmission Mounted Electrical Charging System with Dual Mode Load and Engine Off Motive Load Power patent-application May 2019
Method and Apparatus for a Switching Mode Power Supply patent-application January 2011
Control Method and Device Employing Primary Side Regulation in a Quasi-Resonant AC/DC Flyback Converter patent-application February 2019
Power Control Device patent-application July 2019
Three-Terminal, Low Voltage Pulse Width Modulation Controller IC patent-application September 2003
Power Converter and Power Conversion Method patent-application October 2017
Apparatus, Systems and Methods for Power Supply Employing Single-Stage Forward Voltage Conversion patent-application July 2012
Power Converter and Power Conversion Method patent-application October 2017
Power Convertor patent-application January 2021