JPS6465612A - Extremely low frequency high voltage power supply unit - Google Patents

Extremely low frequency high voltage power supply unit

Info

Publication number
JPS6465612A
JPS6465612A JP22260087A JP22260087A JPS6465612A JP S6465612 A JPS6465612 A JP S6465612A JP 22260087 A JP22260087 A JP 22260087A JP 22260087 A JP22260087 A JP 22260087A JP S6465612 A JPS6465612 A JP S6465612A
Authority
JP
Japan
Prior art keywords
original waveform
signal
light beams
extremely low
low frequency
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.)
Granted
Application number
JP22260087A
Other languages
Japanese (ja)
Other versions
JP2698358B2 (en
Inventor
Tateaki Takagi
Kinjiro Ito
Koji Haga
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.)
EE T I KK
Fuji Electric Co Ltd
Original Assignee
EE T I KK
Fuji Electric Co Ltd
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 EE T I KK, Fuji Electric Co Ltd filed Critical EE T I KK
Priority to JP62222600A priority Critical patent/JP2698358B2/en
Publication of JPS6465612A publication Critical patent/JPS6465612A/en
Application granted granted Critical
Publication of JP2698358B2 publication Critical patent/JP2698358B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Testing Relating To Insulation (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

PURPOSE:To interrupt the generation of high frequency noise and to miniaturize the accuracy of insulation diagnosis by converting a required original waveform into two projected light beams and then converting the projected beams into extremely low frequency high voltages. CONSTITUTION:An original waveform function generating part 11 inputs a waveform function, and its frequency and a peak value as set signals and outputs a function signal of a sine wave AC voltage. The signal is D/A converted by a D/A converter 22 as an original waveform, the original waveform is converted into a non-inverted original waveform signal 23P by an amplifying part 23 and a reflected original waveform signal 23N and a light source part 24 projects light beams 24P, 24N increased/decreased proportionally to respective signals. A high voltage conversion part 31 is provided with a group of light sensitive type cascade bodies 3P, 32N to supply extremely low frequency high voltages to a sample 35. The amplification factors of the cascade bodies 32P, 32N are respectively controlled by the light beams 24P, 24N, the light beams are fed back to the amplifying part 23, the feedback signal is controlled so as to be equal to the original waveform signal, and a high voltage corresponding to the product of the voltage dividing ratio of a resistor 34 and the peak value of the original waveform is impressed to the sample 35.
JP62222600A 1987-09-05 1987-09-05 Ultra low frequency high voltage power supply Expired - Lifetime JP2698358B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62222600A JP2698358B2 (en) 1987-09-05 1987-09-05 Ultra low frequency high voltage power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62222600A JP2698358B2 (en) 1987-09-05 1987-09-05 Ultra low frequency high voltage power supply

Publications (2)

Publication Number Publication Date
JPS6465612A true JPS6465612A (en) 1989-03-10
JP2698358B2 JP2698358B2 (en) 1998-01-19

Family

ID=16785013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62222600A Expired - Lifetime JP2698358B2 (en) 1987-09-05 1987-09-05 Ultra low frequency high voltage power supply

Country Status (1)

Country Link
JP (1) JP2698358B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115666A (en) * 1984-06-29 1986-01-23 Wada Masao Ground fish meat containing shiitake mushroom
JPS62117360A (en) * 1985-09-18 1987-05-28 エッセヂエッセ―トムソン　マイクロエレクトロニクス・エッセ・エッレ・エッレ Cmos output stage with stable large voltage amplitude and zero input current

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115666A (en) * 1984-06-29 1986-01-23 Wada Masao Ground fish meat containing shiitake mushroom
JPS62117360A (en) * 1985-09-18 1987-05-28 エッセヂエッセ―トムソン　マイクロエレクトロニクス・エッセ・エッレ・エッレ Cmos output stage with stable large voltage amplitude and zero input current

Also Published As

Publication number Publication date
JP2698358B2 (en) 1998-01-19

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