Arrangement for reducing ringing in a flyback transformer
CA 1300744 C · Owner: Rca Licensing Corporation · Inventors: Haferl, Peter Eduard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
RCA 85,045, ABSTRACT, A diode is coupled to a low voltage end terminal of a tertiary high voltage winding of a horizontal flyback transformer. The diode is back biased during trace and during a portion of the second half of retrace by a voltage that is coupled to the diode through a resistor from a B+ voltage source. When the diode is back biased the, resistor dampens parasitic ringing current in the tertiary winding caused by the leakage inductance of the transformer. During a portion of retrace occuring prior, to the time the diode is back biased the diode is, conductive and bypasses the resistor. This prevents the resistor from increasing the output impedance at the ultor terminal.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.