JPS55161421A - Waveform shaping unit - Google Patents

Waveform shaping unit

Info

Publication number
JPS55161421A
JPS55161421A JP6834779A JP6834779A JPS55161421A JP S55161421 A JPS55161421 A JP S55161421A JP 6834779 A JP6834779 A JP 6834779A JP 6834779 A JP6834779 A JP 6834779A JP S55161421 A JPS55161421 A JP S55161421A
Authority
JP
Japan
Prior art keywords
current
input signal
current source
collector
transistor
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
JP6834779A
Other languages
Japanese (ja)
Other versions
JPS6147447B2 (en
Inventor
Hiromitsu Nakano
Junichi Hikita
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.)
Rohm Co Ltd
Panasonic Holdings Corp
Original Assignee
Rohm Co Ltd
Toyo Electronics Industry Corp
Matsushita Electric Industrial 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 Rohm Co Ltd, Toyo Electronics Industry Corp, Matsushita Electric Industrial Co Ltd filed Critical Rohm Co Ltd
Priority to JP6834779A priority Critical patent/JPS55161421A/en
Publication of JPS55161421A publication Critical patent/JPS55161421A/en
Publication of JPS6147447B2 publication Critical patent/JPS6147447B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/003—Changing the DC level

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Control Of Electric Motors In General (AREA)
  • Manipulation Of Pulses (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To prevent reduction of the offset width to shape the waveform stably and surely, by connecting a constant current source, which flows a current smaller than the current of the constant current source for the emitter, to the collector of the other transistor which constitutes a differential amplifying circuit. CONSTITUTION:For the purpose of giving offset, constant current source 22 is connected to the collector of transistor 13. Current Io' has a relation to satisfy KIo (where I>K>0). When an input signal is given to input terminal 11, current I2 is reduced from the time when the input signal enters the positive range across zero. Since current Io' is flowed to constant current source 22, the collector potential of transistor 20 does not become an H level immediately. When the input signal is increased furthermore and difference between currents I1 and I2 becomes larger than current Io', the collector potential becomes the high level. Thus, offset is given to the input signal.
JP6834779A 1979-05-31 1979-05-31 Waveform shaping unit Granted JPS55161421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6834779A JPS55161421A (en) 1979-05-31 1979-05-31 Waveform shaping unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6834779A JPS55161421A (en) 1979-05-31 1979-05-31 Waveform shaping unit

Publications (2)

Publication Number Publication Date
JPS55161421A true JPS55161421A (en) 1980-12-16
JPS6147447B2 JPS6147447B2 (en) 1986-10-20

Family

ID=13371199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6834779A Granted JPS55161421A (en) 1979-05-31 1979-05-31 Waveform shaping unit

Country Status (1)

Country Link
JP (1) JPS55161421A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57173220A (en) * 1981-04-17 1982-10-25 Toshiba Corp Comparator circuit
JPS5853226A (en) * 1981-09-25 1983-03-29 Toshiba Corp Signal switching circuit
WO1989001262A2 (en) * 1987-07-29 1989-02-09 Fujitsu Limited High-speed electronic circuit having a cascode configuration
JPH02174418A (en) * 1988-12-27 1990-07-05 Nec Corp Comparison circuit
US5510745A (en) * 1987-07-29 1996-04-23 Fujitsu Limited High-speed electronic circuit having a cascode configuration

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57173220A (en) * 1981-04-17 1982-10-25 Toshiba Corp Comparator circuit
JPH0231530B2 (en) * 1981-04-17 1990-07-13 Tokyo Shibaura Electric Co
JPS5853226A (en) * 1981-09-25 1983-03-29 Toshiba Corp Signal switching circuit
WO1989001262A2 (en) * 1987-07-29 1989-02-09 Fujitsu Limited High-speed electronic circuit having a cascode configuration
US5510745A (en) * 1987-07-29 1996-04-23 Fujitsu Limited High-speed electronic circuit having a cascode configuration
JPH02174418A (en) * 1988-12-27 1990-07-05 Nec Corp Comparison circuit

Also Published As

Publication number Publication date
JPS6147447B2 (en) 1986-10-20

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