Method for generating high pulse voltage in an inductive load

• US 10,355,599 B2
• Filed: 05/04/2016
• Issued: 07/16/2019
• Est. Priority Date: 05/04/2016
• Status: Active Grant

• Current Assignee: Drive Cjsc
• Original Assignee: Drive Cjsc
• Inventors: Romanov, Yuriy I., Maletskiy, Stanislav V.
• Primary Examiner(s): Torres-Rivera, Alex
• Application Number:
  US16/092,693
• Publication Number:
  US 20190165682A1
• Time in Patent Office: 1,168 Days
• Field of Search: 363 2104, 363 211, 363 2111, 363 2112, 363 2118
• CPC Class Codes: H02M 1/0006 Arrangements for supplying an adequate voltage to the control circuit of converters
• CPC Class Codes: H02M 1/0058 by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero using an auxiliary actively switched resonant commutation circuit connected to an intermediate DC voltage or between two push-pull branches of an inverter bridge H02M7/4811; in resonant inverters H02M7/4815; in inverters operating from a resonant DC source H02M7/4826
• CPC Class Codes: H02M 1/08 Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
• CPC Class Codes: H02M 1/12 Arrangements for reducing harmonics from ac input or output
• CPC Class Codes: H02M 1/14 Arrangements for reducing ripples from dc input or output
• CPC Class Codes: H02M 1/342 Active non-dissipative snubbers
• CPC Class Codes: H02M 1/44 Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• CPC Class Codes: H02M 3/335 using semiconductor devices only
• CPC Class Codes: H02M 3/33507 with automatic control of the output voltage or current, e.g. flyback converters H02M3/33561, H02M3/33569 take precedence
• CPC Class Codes: H02M 3/33523 with galvanic isolation between input and output of both the power stage and the feedback loop

Abstract

A method for generating a high pulse voltage in an inductive load consists in periodically connecting an inductive load to the outputs of a source of high constant voltage using a first controllable switching device, periodically disconnecting and connecting a control circuit of a second controllable switching device using a first controllable switch, and also periodically supplying low voltage from an output of a source of low constant voltage to the control circuit of the second controllable switching device via a second controllable switch, thus eliminating conditions conducive to transient pulsed electromagnetic interference during the generation of a high pulse voltage in an inductive load.

Claims

1. A method of generating high pulse voltage in an inductive load, the method comprising:

providing high DC voltage and low DC voltage;

generating a first sequence of controlling square pulses having a preset duration of pulses;

applying the first sequence of controlling square pulses having a preset duration of pulses to a control input of a first controlled gate;

periodically connecting an inductive load to outputs of a high DC voltage source;

generating a second sequence of controlling square pulses having another preset duration of pulses;

applying the second sequence of controlling pulses to a control input of a first controlled switch;

periodically disconnecting and connecting a control input of a second controlled gate and a load thereof by the first controlled switch;

transforming the first sequence of controlling pulses having a preset duration of pulses into a third sequence of controlling pulses, trailing edges of the pulses of the third sequence leading trailing edges of the pulses of the first sequence by a preset value; and

applying the third sequence of controlling pulses to a control input of a second controlled switch periodically applying the low voltage from an output of a low DC voltage source to a control input of the second controlled gate.