TW200601678A - Frequency tuner - Google Patents

Frequency tuner

Info

Publication number
TW200601678A
TW200601678A TW093119165A TW93119165A TW200601678A TW 200601678 A TW200601678 A TW 200601678A TW 093119165 A TW093119165 A TW 093119165A TW 93119165 A TW93119165 A TW 93119165A TW 200601678 A TW200601678 A TW 200601678A
Authority
TW
Taiwan
Prior art keywords
power supply
frequency tuner
coupled
switch
boost
Prior art date
Application number
TW093119165A
Other languages
Chinese (zh)
Other versions
TWI286875B (en
Inventor
Shwang-Shi Bai
Hsing-Hung Lin
Original Assignee
Himax Tech Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Himax Tech Inc filed Critical Himax Tech Inc
Priority to TW93119165A priority Critical patent/TWI286875B/en
Publication of TW200601678A publication Critical patent/TW200601678A/en
Application granted granted Critical
Publication of TWI286875B publication Critical patent/TWI286875B/en

Links

Landscapes

  • Television Receiver Circuits (AREA)
  • Inverter Devices (AREA)

Abstract

The present invention relates to a frequency tuner, which outputs an AC power supply in accordance with a DC voltage. The frequency tuner includes a boost circuit for outputting a boost DC power supply; a first switch controlled by a first control signal and coupled to a boost DC power supply by its first end; a second switch controlled by a second control signal, and having a first end coupled to a second end of the first switch and a second end connected to the ground; and a transformer having a first end of a primary coil coupled to the second end of the first switch, a second end of the primary coil coupled to a DC power supply, and a secondary coil for outputting the AC power.
TW93119165A 2004-06-29 2004-06-29 Frequency tuner TWI286875B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW93119165A TWI286875B (en) 2004-06-29 2004-06-29 Frequency tuner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93119165A TWI286875B (en) 2004-06-29 2004-06-29 Frequency tuner

Publications (2)

Publication Number Publication Date
TW200601678A true TW200601678A (en) 2006-01-01
TWI286875B TWI286875B (en) 2007-09-11

Family

ID=39459422

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93119165A TWI286875B (en) 2004-06-29 2004-06-29 Frequency tuner

Country Status (1)

Country Link
TW (1) TWI286875B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI413100B (en) * 2008-03-28 2013-10-21 Innolux Corp Power supply circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI413100B (en) * 2008-03-28 2013-10-21 Innolux Corp Power supply circuit

Also Published As

Publication number Publication date
TWI286875B (en) 2007-09-11

Similar Documents

Publication Publication Date Title
WO2009025517A3 (en) Power factor correction circuit
TW200625775A (en) Switching power supply circuit
WO2008033984A3 (en) Circuitry for supplying electrical power to loads
WO2009147563A3 (en) Led lamp driver and method
WO2009008449A1 (en) High voltage generator circuit, ion generator and electric apparatus
WO2011029875A3 (en) Voltage transformer and method for controlling the transformer
WO2008116042A3 (en) Power supply
EP1603221A3 (en) Switching power supply circuit
TW200723663A (en) Power supply device
TW200943679A (en) Switching control circuit
TW200703865A (en) Soft switching DC-DC converter
TW200711284A (en) Bridgeless bi-directional forward type converter
WO2012129485A3 (en) Integrated magnetics with isolated drive circuit
TW200631468A (en) Discharge-lamp control device
WO2008074767A3 (en) Power supply apparatus for a capacitive load
MX2009000225A (en) High voltage power supply.
TW200505145A (en) Zero-voltage switching push-pull converter
WO2011151267A3 (en) An arc fault detector for ac or dc installations
TW200703871A (en) DC-AC converter and controlling method thereof
MY155813A (en) Ac vontage reduction by means of a transformer
WO2009025154A1 (en) Ac power supply apparatus
TW200640291A (en) Power supply circuit for lamp and transformer therefor
WO2007098098A3 (en) Electronic power conditioner with integrated magnetics
WO2007019086A3 (en) Ac coupled bias circuit for power converters
ZA201004825B (en) Starting device with two input poles

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees