JPS5535502A - Base driving circuit of pulse width modulation switching amplifier transistor - Google Patents

Base driving circuit of pulse width modulation switching amplifier transistor

Info

Publication number
JPS5535502A
JPS5535502A JP10808878A JP10808878A JPS5535502A JP S5535502 A JPS5535502 A JP S5535502A JP 10808878 A JP10808878 A JP 10808878A JP 10808878 A JP10808878 A JP 10808878A JP S5535502 A JPS5535502 A JP S5535502A
Authority
JP
Japan
Prior art keywords
base driving
pulse width
driving circuit
terminal
width modulation
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
JP10808878A
Other languages
Japanese (ja)
Other versions
JPS6040728B2 (en
Inventor
Tetsuo Yoshida
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP10808878A priority Critical patent/JPS6040728B2/en
Publication of JPS5535502A publication Critical patent/JPS5535502A/en
Publication of JPS6040728B2 publication Critical patent/JPS6040728B2/en
Expired legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE: To devise that the dynamic range of a pulse width wide by changing base driving current corresponding to a pulse width.
CONSTITUTION: An input signal 29 and a delta wave 28 in constant amplitude are introduced in a high speed voltage comparator 9 through terminals 11, 10, and applied to a base driving circuit 14 as width modulated signals 30, 31. A buffer amp. 16 superimposes positive power supply voltage 18 on the input signal 29 and pours it in a terminal B connected to the negative power supply and a speed up condensor C3 from a terminal A of the base driving circuit 14. Owing to this, voltage of the terminal A becomes waveform 33, and the base driving current takes waveform 34. Herewith, turn ON and turn OFF time of the switching transistor 15 are reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP10808878A 1978-09-05 1978-09-05 Base drive circuit for pulse width modulation switching amplification transistor Expired JPS6040728B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10808878A JPS6040728B2 (en) 1978-09-05 1978-09-05 Base drive circuit for pulse width modulation switching amplification transistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10808878A JPS6040728B2 (en) 1978-09-05 1978-09-05 Base drive circuit for pulse width modulation switching amplification transistor

Publications (2)

Publication Number Publication Date
JPS5535502A true JPS5535502A (en) 1980-03-12
JPS6040728B2 JPS6040728B2 (en) 1985-09-12

Family

ID=14475559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10808878A Expired JPS6040728B2 (en) 1978-09-05 1978-09-05 Base drive circuit for pulse width modulation switching amplification transistor

Country Status (1)

Country Link
JP (1) JPS6040728B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5742214A (en) * 1980-08-27 1982-03-09 Sony Corp Power amplifier
JPS5940713A (en) * 1982-08-31 1984-03-06 Nippon Gakki Seizo Kk Pulse width modulation amplifier circuit
JPS59200509A (en) * 1983-04-26 1984-11-13 Pioneer Electronic Corp Pulse width modulating power amplifier
CN102761317A (en) * 2011-04-25 2012-10-31 株式会社东芝 Pulse electric power amplification apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5742214A (en) * 1980-08-27 1982-03-09 Sony Corp Power amplifier
JPS6337964B2 (en) * 1980-08-27 1988-07-27 Sony Corp
JPS5940713A (en) * 1982-08-31 1984-03-06 Nippon Gakki Seizo Kk Pulse width modulation amplifier circuit
JPH04407B2 (en) * 1982-08-31 1992-01-07 Yamaha Corp
JPS59200509A (en) * 1983-04-26 1984-11-13 Pioneer Electronic Corp Pulse width modulating power amplifier
JPH0380363B2 (en) * 1983-04-26 1991-12-24 Pioneer Electronic Corp
CN102761317A (en) * 2011-04-25 2012-10-31 株式会社东芝 Pulse electric power amplification apparatus
CN102761317B (en) * 2011-04-25 2015-09-30 株式会社东芝 Pulse Power Magnification device

Also Published As

Publication number Publication date
JPS6040728B2 (en) 1985-09-12

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