JPS5512433A - Chiming sound amplifier for electronic chiming circuit - Google Patents

Chiming sound amplifier for electronic chiming circuit

Info

Publication number
JPS5512433A
JPS5512433A JP8480978A JP8480978A JPS5512433A JP S5512433 A JPS5512433 A JP S5512433A JP 8480978 A JP8480978 A JP 8480978A JP 8480978 A JP8480978 A JP 8480978A JP S5512433 A JPS5512433 A JP S5512433A
Authority
JP
Japan
Prior art keywords
chiming
emitter
collector
signals
amplifier
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
JP8480978A
Other languages
Japanese (ja)
Other versions
JPS6036595B2 (en
Inventor
Hiroshi Itoyama
Minoru Kuroda
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP8480978A priority Critical patent/JPS6036595B2/en
Publication of JPS5512433A publication Critical patent/JPS5512433A/en
Publication of JPS6036595B2 publication Critical patent/JPS6036595B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)

Abstract

PURPOSE:To make it possible to always maintain constant the tone of the intermittently chiming signals, which are attenuated with a preset time constant, by using an amplifier which has its output voltage independent of the amplification of a transistor. CONSTITUTION:Sound frequency signals f1 are intermitted by chiming frequency signals f2 and are attenuated into chiming signals, which are fed to the base of a transistor TR Tr1. The primary winding of an output transformer is connected as a load resistor R1 between the emitter of the TR Tr1 and the collector of a TR Tr2. The emitter of the TR Tr1 and the collector of a TR Tr2. The emitter of the TR Tr1 is connected through a resistor RE with a power source, and the TR Tr2 has its emitter grounded to the earth and its base connected with the collector of the TR Tr1. The output voltage of the amplifier thus constructed becomes EOUT = VO X RL/RE (wherein VO stands for an input voltage) so that it become independent of the amplification of the TRs Tr1 and Tr2. As a result, it is possible to generate the chiming sounds of a preset tone irrespective of the influences due to the dispersion and fluctuations in the amplitude of the transistors Tr1 and Tr2.
JP8480978A 1978-07-11 1978-07-11 Electronic time striking circuit's striking sound amplification circuit Expired JPS6036595B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8480978A JPS6036595B2 (en) 1978-07-11 1978-07-11 Electronic time striking circuit's striking sound amplification circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8480978A JPS6036595B2 (en) 1978-07-11 1978-07-11 Electronic time striking circuit's striking sound amplification circuit

Publications (2)

Publication Number Publication Date
JPS5512433A true JPS5512433A (en) 1980-01-29
JPS6036595B2 JPS6036595B2 (en) 1985-08-21

Family

ID=13841039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8480978A Expired JPS6036595B2 (en) 1978-07-11 1978-07-11 Electronic time striking circuit's striking sound amplification circuit

Country Status (1)

Country Link
JP (1) JPS6036595B2 (en)

Also Published As

Publication number Publication date
JPS6036595B2 (en) 1985-08-21

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