DRIVE CIRCUIT BETWEEN FLUORESCENT BALLAST AND LED Russian patent published in 2017 - IPC H05B33/08 

Abstract RU 2632183 C2

FIELD: electricity.

SUBSTANCE: drive circuits (1) for driving loads (2) containing light-emitting diodes are equipped with rectifiers (11-14) to exchange the first current signals with fluorescent ballasts (3) with active electronic ballasts and to apply the second current signals to loads (2), with switching circuits (21-27) connecting to rectifiers (11-14) or forming the part to control the energy values provided to the loads (2) and with controllers (31) to control the switching circuits (21) in such a way that switching frequencies of the switching circuits (21) are equal or are less than doubled frequencies of the first current signals. Desynchronization circuits coordinate the output impedances of fluorescent ballasts (3) and the input impedances of the rectifiers (11-14). Start-up circuits (5) increase impedances at the input contacts of the rectifiers (11-14) upon start-up. Current sensors and voltage sensors provide feedback. Controllers (31) synchronize switching frequencies of switching circuits (21) and switching frequencies of active electronic ballasts. Detectors reveal a zero crossing in the first current signals.

EFFECT: reduced energy losses and reduced disturbance.

15 cl, 16 dwg

Similar patents RU2632183C2

Title Year Author Number
INTERFACE CIRCUIT 2012
  • Luf Kristof
  • Tao Khajmin
RU2604636C2
DRIVER FOR CONNECTING LIGHT-EMITTING DIODE TO ELECTRONIC BALLAST 2012
  • Tao Khajmin
RU2609130C2
ELECTRONIC BALLAST SCHEME FOR LAMPS 2010
  • Maknej Stiv
RU2560526C2
DRIVER CIRCUIT BETWEEN ELECTROMAGNETIC BALLAST AND LIGHT-EMITTING DIODE 2013
  • Tao Khajmin
  • Vang Shrek
  • Kun Tszyankhun
RU2661891C2
ADAPTIVE CIRCUIT 2011
  • Radermakher Kharal'D
RU2560835C2
CIRCUIT OF POWER RATIO CONTROL AND GRID SOURCE OF POWER SUPPLY 2008
  • Dekramer Alen
RU2480888C2
WIRELESS INDUCTIVE POWER TRANSMISSION 2016
  • Joye, Neil, Francis
  • Lulofs, Klaas, Jacob
RU2696491C1
FEED CIRCUIT AND DEVICE CONTAINING FEED CIRCUIT 2007
  • Vendt Mattias
  • Van Der Bruk Khajnts
  • Zauehrlender Georg
  • Khente Dirk
RU2427954C2
LED LAMP DRIVER AND METHOD 2009
  • Krenshou Dehvid
  • De Lima Shejn
RU2518525C2
LED LAMP COMPRISING A SAFETY MODULE FOR SAFE OPERATION ON VARIOUS BALLASTS 2014
  • Tausajn Robertus Leonardus
  • Ven Tyan Syan
  • Tao Khajmin
RU2657472C2

RU 2 632 183 C2

Authors

Tao Khajmin

Yans Villiam Peter Mekhtildis Mari

Dates

2017-10-04Published

2013-06-28Filed