JPS54157305A - Control circuit for electro-magnetic pump - Google Patents

Control circuit for electro-magnetic pump

Info

Publication number
JPS54157305A
JPS54157305A JP6740578A JP6740578A JPS54157305A JP S54157305 A JPS54157305 A JP S54157305A JP 6740578 A JP6740578 A JP 6740578A JP 6740578 A JP6740578 A JP 6740578A JP S54157305 A JPS54157305 A JP S54157305A
Authority
JP
Japan
Prior art keywords
pump
transistor
voltage
current
potential
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
JP6740578A
Other languages
Japanese (ja)
Inventor
Kazuo Aoki
Norihiko Maruta
Isao Takahashi
Norio Yamashita
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP6740578A priority Critical patent/JPS54157305A/en
Publication of JPS54157305A publication Critical patent/JPS54157305A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electromagnetic Pumps, Or The Like (AREA)

Abstract

PURPOSE: To provide a control circuit which applies normally constant voltage to a pump by absorbing voltage variation through a drive circuit to maintain the pump discharge constant.
CONSTITUTION: When supply voltage is varied to make voltage across both ends of a variable resistor R1, for example, 55V, the base potential of a transistor Tr2 for setting constant voltage is also raised to increase its current i2 and collector-emitter current i2 and reduce base-emitter current i1 of a switching transistor Tr1, thereby collector-emitter current i1 of same transistor and potential at point B to hold potential for driving a pump at about 45V. A variable resistor R1 in a drive circuit 5 is adjusted to vary voltage dividing ratio, each current i2, i2 of transistor Tr2, each current i1, i1 of transistor Tr1 and potential Vp for driving the pump so that the pump discharge can be maintained constant by fine adjustment of R1 when the discharge is not stabilized even if constant voltage is applied to the pump 6.
COPYRIGHT: (C)1979,JPO&Japio
JP6740578A 1978-06-02 1978-06-02 Control circuit for electro-magnetic pump Pending JPS54157305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6740578A JPS54157305A (en) 1978-06-02 1978-06-02 Control circuit for electro-magnetic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6740578A JPS54157305A (en) 1978-06-02 1978-06-02 Control circuit for electro-magnetic pump

Publications (1)

Publication Number Publication Date
JPS54157305A true JPS54157305A (en) 1979-12-12

Family

ID=13343989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6740578A Pending JPS54157305A (en) 1978-06-02 1978-06-02 Control circuit for electro-magnetic pump

Country Status (1)

Country Link
JP (1) JPS54157305A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4606707A (en) * 1984-06-27 1986-08-19 Honda Giken Kogyo Kabushiki Kaisha Pump apparatus having two drive motors
JP2001153058A (en) * 1997-10-17 2001-06-05 Tacmina Corp Control circuit for solenoid driven pump

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4989906A (en) * 1972-12-29 1974-08-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4989906A (en) * 1972-12-29 1974-08-28

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4606707A (en) * 1984-06-27 1986-08-19 Honda Giken Kogyo Kabushiki Kaisha Pump apparatus having two drive motors
JP2001153058A (en) * 1997-10-17 2001-06-05 Tacmina Corp Control circuit for solenoid driven pump

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