JPS6474066A - Power source equipment - Google Patents

Power source equipment

Info

Publication number
JPS6474066A
JPS6474066A JP62228028A JP22802887A JPS6474066A JP S6474066 A JPS6474066 A JP S6474066A JP 62228028 A JP62228028 A JP 62228028A JP 22802887 A JP22802887 A JP 22802887A JP S6474066 A JPS6474066 A JP S6474066A
Authority
JP
Japan
Prior art keywords
circuit
power source
light control
bias
output
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP62228028A
Other languages
Japanese (ja)
Inventor
Tsutomu Kakiya
Kenichi Inui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Electric Equipment Corp
Original Assignee
Toshiba Electric Equipment Corp
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 Toshiba Electric Equipment Corp filed Critical Toshiba Electric Equipment Corp
Priority to JP62228028A priority Critical patent/JPS6474066A/en
Publication of JPS6474066A publication Critical patent/JPS6474066A/en
Pending legal-status Critical Current

Links

Landscapes

  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To reduce loss of circuit, by applying DC bias onto an output voltage from an output amount detection circuit then making negative feedback control corresponding to the output amount. CONSTITUTION:A fluorescent lamp is connected as a load of a power source equipment to constitute a lighting device for light control. A rectifier circuit 2 comprising a full-wave rectifier 21 and a smoothing capacitor 22 is connected through L-type filter circuits 11-12 to an AC power source, and a separately excited inverter circuit 3 having two MOSFET 31, 32 is connected between output terminals of the rectifier circuit 2. A starting circuit 4, a control system power source circuit 5, a light control circuit 6, a V-f converter 7 and a drive circuit 8 are further provided. The light control circuit 6 comprises a lamp current detecting circuit 61, a DC conversion circuit 62, a lamp voltage detecting circuit 63, an error amplifier 64, etc., and converts a PWM light control signal to a DC signal which is added as DC bias to a detected voltage. Consequently, output amount is reversely proportional to DC bias amount.
JP62228028A 1987-09-11 1987-09-11 Power source equipment Pending JPS6474066A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62228028A JPS6474066A (en) 1987-09-11 1987-09-11 Power source equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62228028A JPS6474066A (en) 1987-09-11 1987-09-11 Power source equipment

Publications (1)

Publication Number Publication Date
JPS6474066A true JPS6474066A (en) 1989-03-20

Family

ID=16870066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62228028A Pending JPS6474066A (en) 1987-09-11 1987-09-11 Power source equipment

Country Status (1)

Country Link
JP (1) JPS6474066A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007005258A (en) * 2005-06-27 2007-01-11 Matsushita Electric Works Ltd Lighting system
JP2007200889A (en) * 2006-01-24 2007-08-09 Kofukin Seimitsu Kogyo (Shenzhen) Yugenkoshi Light modulation mode selection circuit, and discharge lamp drive device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007005258A (en) * 2005-06-27 2007-01-11 Matsushita Electric Works Ltd Lighting system
JP2007200889A (en) * 2006-01-24 2007-08-09 Kofukin Seimitsu Kogyo (Shenzhen) Yugenkoshi Light modulation mode selection circuit, and discharge lamp drive device

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