Method of DC voltage - pulse voltage conversion

• US 20190326821A1
• Filed: 01/10/2017
• Published: 10/24/2019
• Est. Priority Date: 01/10/2017
• Status: Active Grant

• Current Assignee: Closed-Up Joint-Stock Company Drive
• Original Assignee: Closed-Up Joint-Stock Company Drive
• Inventors: Romanov, Yuriy I., Maletskiy, Stanislav V.
• Granted Patent: US 10,447,167 B1
• Time in Patent Office: Days
• CPC Class Codes: H02M 1/0032 Control circuits allowing low power mode operation, e.g. in standby mode
• CPC Class Codes: H02M 1/44 Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• CPC Class Codes: H02M 11/00 Power conversion systems not covered by the preceding groups
• CPC Class Codes: H02M 3/33523 with galvanic isolation between input and output of both the power stage and the feedback loop
• CPC Class Codes: H03K 3/01 Details
• CPC Class Codes: Y02B 70/10 Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

In a method of DC voltage—pulse voltage conversion, DC voltage is provided; a succession of controlling square pulses having adjustable pulse ratio is generated; an inductive load is periodically connected to outputs of a source of the DC voltage using the succession of the controlling square pulses; pulse current flowing through the inductive load is generated; a predefined value of resistance of an electronically-controlled resistor included in a circuit of the pulse current flowing through the inductive load is formed, and the pulse current is adjusted by the electronically-controlled resistor, whereby adjusting the level of pulse electromagnetic noise radiated to the environment is achieved.

Claims

1. A method of DC voltage—

pulse voltage conversion comprising the steps of;

providing DC voltage;

generating a succession of controlling square pulses having adjustable pulse ratio;

periodically connecting an inductive load to outputs of a source of said DC voltage using said succession of said controlling square pulses;

generating pulse current flowing through said inductive load;

adjusting said pulse current; and

forming adjustable pulse voltage,

wherein a predefined value of resistance of an electronically-controlled resistor included in a circuit of said pulse current flowing through said inductive load is formed, and said adjusting said pulse current is performed by said electronically-controlled resistor

to thereby adjust the level of pulse electromagnetic noise radiated to the environment.