JPS54102949A - Differential detector circuit - Google Patents

Differential detector circuit

Info

Publication number
JPS54102949A
JPS54102949A JP1010078A JP1010078A JPS54102949A JP S54102949 A JPS54102949 A JP S54102949A JP 1010078 A JP1010078 A JP 1010078A JP 1010078 A JP1010078 A JP 1010078A JP S54102949 A JPS54102949 A JP S54102949A
Authority
JP
Japan
Prior art keywords
circuit
trt11
resistance
constant current
differential
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
JP1010078A
Other languages
Japanese (ja)
Inventor
Koichi Yamada
Toshiomi Yabu
Tatsuo Wada
Tadashi Yoshino
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.)
Panasonic Holdings Corp
Original Assignee
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1010078A priority Critical patent/JPS54102949A/en
Priority to US06/007,247 priority patent/US4211964A/en
Publication of JPS54102949A publication Critical patent/JPS54102949A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers

Abstract

PURPOSE:To obtain a differential detector circuit which is stable to the temperature variation by forming the necessary two units of the transistor Tr into the same constitution and setting the ratio of 1 : 2 for the necessary two units of the resistance for the constant current source circuit, the differential circuit and the circuit to detect the output. CONSTITUTION:The same constitution is secured between TrT9 used as the bias source of the constant current source circuit and TrT11 to detect the output of the differential circuit, and the ratio of 1 : 2 is obtained between resistance R7 which decides the current value of the constant current source circuit and resistance R8 which is connected to the collector of TrT6 constituting the differential circuit. Thus, Vd Vcc-VBE[T9] is satisfied, where Vd is the collector voltage of TrT6, VBE[T9] is the base-emitter voltage of TrT9 respectively. This means the same switching voltage as TrT11 with the same constitution as TrT11 and T9, and thus the waveform shaping is possible at the point of the zero-cross at all times regardless of the temperature change. As a result, the azimuth wave output of duty 50-50 can be obtained irrespective of the temperature change.
JP1010078A 1978-01-31 1978-01-31 Differential detector circuit Pending JPS54102949A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1010078A JPS54102949A (en) 1978-01-31 1978-01-31 Differential detector circuit
US06/007,247 US4211964A (en) 1978-01-31 1979-01-29 Speed control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1010078A JPS54102949A (en) 1978-01-31 1978-01-31 Differential detector circuit

Publications (1)

Publication Number Publication Date
JPS54102949A true JPS54102949A (en) 1979-08-13

Family

ID=11740892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1010078A Pending JPS54102949A (en) 1978-01-31 1978-01-31 Differential detector circuit

Country Status (1)

Country Link
JP (1) JPS54102949A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5661806A (en) * 1979-10-24 1981-05-27 Matsushita Electric Ind Co Ltd Oscillating device
JP2010239264A (en) * 2009-03-30 2010-10-21 Mitsubishi Electric Corp Monitor circuit and optical receiver using the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145973U (en) * 1974-10-03 1976-04-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145973U (en) * 1974-10-03 1976-04-05

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5661806A (en) * 1979-10-24 1981-05-27 Matsushita Electric Ind Co Ltd Oscillating device
JPS6217885B2 (en) * 1979-10-24 1987-04-20 Matsushita Electric Ind Co Ltd
JP2010239264A (en) * 2009-03-30 2010-10-21 Mitsubishi Electric Corp Monitor circuit and optical receiver using the same

Similar Documents

Publication Publication Date Title
JPS5421102A (en) Semiconductor device circuit
JPS54102949A (en) Differential detector circuit
JPS5644209A (en) Signal converting circuit
JPS5676616A (en) Current operational amplifier
JPS5442949A (en) Ternary converter circuit
JPS5597619A (en) Reference signal generating circuit
JPS5739424A (en) Reference voltage source
JPS53139163A (en) Constant voltage generator circuit
JPS56140715A (en) Feedback-type limiting circuit
JPS52140256A (en) Multi-vibrator
JPS5515511A (en) Constant current circuit
JPS5277558A (en) Variable resistance circuit
JPS5523609A (en) Two wire type signal conversion amplifier
JPS5597710A (en) Converter circuit
JPS5481023A (en) High voltage generation circuit
JPS5449053A (en) Signal converter circuit
JPS5642410A (en) Emitter follower circuit
JPS5516563A (en) Stabilizer circuit for video output voltage
JPS52153787A (en) Generating circuit of temperature perceiving signal
JPS5539456A (en) Pulse generation circuit
JPS567118A (en) Stabilizing electric power circuit
JPS54161871A (en) Oscillation circuit
JPS5597729A (en) Schmitt circuit
JPS5269579A (en) Thermal resistance measurement circuit for electric power darlington t ransistor
JPS5349245A (en) Constant voltage circuit