JPS5755320A - Slow starting circuit - Google Patents

Slow starting circuit

Info

Publication number
JPS5755320A
JPS5755320A JP12970180A JP12970180A JPS5755320A JP S5755320 A JPS5755320 A JP S5755320A JP 12970180 A JP12970180 A JP 12970180A JP 12970180 A JP12970180 A JP 12970180A JP S5755320 A JPS5755320 A JP S5755320A
Authority
JP
Japan
Prior art keywords
point
wave shape
potential
output
outlet pressure
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
JP12970180A
Other languages
Japanese (ja)
Inventor
Chuzo Wada
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 JP12970180A priority Critical patent/JPS5755320A/en
Publication of JPS5755320A publication Critical patent/JPS5755320A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To contrive reducing ignition sound in the slow starting circuit of a boiler that uses kerosene as fuel in by lowering the outlet pressure through giving pulses in a half of the line frequency to an electromagnetic pump before timer operation.
CONSTITUTION: A capacitor 11 starts charging when an electric power source switch 2 is closed, and the potential of (e) point approaches that of (f) point. Next, when the potential of (c) point with a wave shape C gets into FF circuit 17, the output h point becomes pulses with a half of the input frequency, and its wave shape become D. Consequently the output of second differential amplifier 20 has the same wave shape as D, and a thyristor 4 is passable by a transistor 22, making the wave shape as E. The outlet pressure of an electromagnetic pump 3 is, therefore, low and the ignition sound can be lowered. Next, when the potential (e) point of the capacitor 11 becomes larger than the (f) point, the transistor 22 keeps being turned on, because the output of the first differential amplifier 14 makes the (h) point zero, and the wave shape applied to the pump 3 becomes F, which allows the pump 3 obtain the normal outlet pressure.
COPYRIGHT: (C)1982,JPO&Japio
JP12970180A 1980-09-17 1980-09-17 Slow starting circuit Pending JPS5755320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12970180A JPS5755320A (en) 1980-09-17 1980-09-17 Slow starting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12970180A JPS5755320A (en) 1980-09-17 1980-09-17 Slow starting circuit

Publications (1)

Publication Number Publication Date
JPS5755320A true JPS5755320A (en) 1982-04-02

Family

ID=15016054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12970180A Pending JPS5755320A (en) 1980-09-17 1980-09-17 Slow starting circuit

Country Status (1)

Country Link
JP (1) JPS5755320A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61290608A (en) * 1985-06-17 1986-12-20 モレツクス　インコ−ポレ−テツド Apparatus for manufacturing electric harness
JPS6244907A (en) * 1985-08-22 1987-02-26 モレツクス　インコ−ポレ−テツド Method and apparatus for manufacturing electric cable harness

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103740A (en) * 1975-03-08 1976-09-13 Hitachi Ltd CHANERUBATSU FUASOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103740A (en) * 1975-03-08 1976-09-13 Hitachi Ltd CHANERUBATSU FUASOCHI

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61290608A (en) * 1985-06-17 1986-12-20 モレツクス　インコ−ポレ−テツド Apparatus for manufacturing electric harness
JPS6244907A (en) * 1985-08-22 1987-02-26 モレツクス　インコ−ポレ−テツド Method and apparatus for manufacturing electric cable harness

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