JPS562024A - Automatic full-wave/half-wave change-over circuit - Google Patents

Automatic full-wave/half-wave change-over circuit

Info

Publication number
JPS562024A
JPS562024A JP7742479A JP7742479A JPS562024A JP S562024 A JPS562024 A JP S562024A JP 7742479 A JP7742479 A JP 7742479A JP 7742479 A JP7742479 A JP 7742479A JP S562024 A JPS562024 A JP S562024A
Authority
JP
Japan
Prior art keywords
wave
control
circuit
thyristor
load
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
JP7742479A
Other languages
Japanese (ja)
Inventor
Masaki Nakamura
Haruo Terai
Jun Iguchi
Katsunori Zaizen
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 JP7742479A priority Critical patent/JPS562024A/en
Publication of JPS562024A publication Critical patent/JPS562024A/en
Pending legal-status Critical Current

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  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE: To realize an equipment suitable to a commodity of journey portability by protecting the equipment against abnormal heating without overweighting a load by providing automatic half-wave or full-wave rectification of an output according to the level of an electric power voltage.
CONSTITUTION: Between terminals 1 and 2 connecting with an AC power source, the series circuit of capacitor 3 and two-terminal thyristor 4 is connected and the bridge circuit consisting of control rectifying element 9 with a control circuit such as SCR and three diodes 6W8 is provided; and this bridge circuit is connected in parallel to the series circuit. Between the connection point between capacitor 3 and thyristor 4, an the control terminal of control rectifying element 9, resistor 10 is further connected and load 11 where resistor 12 and DC motor 13 are connected in series is driven. While an electric power voltage is high, control rectifying element 9 is brought under the control of thyristor 4. Only when the side of terminal 1 is held at a positive potential, the bridge circuit is used for half-wave rectification and when low, it serves as a full-wave rectifying circuit, preventing load 11 from heating up abnormally.
COPYRIGHT: (C)1981,JPO&Japio
JP7742479A 1979-06-18 1979-06-18 Automatic full-wave/half-wave change-over circuit Pending JPS562024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7742479A JPS562024A (en) 1979-06-18 1979-06-18 Automatic full-wave/half-wave change-over circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7742479A JPS562024A (en) 1979-06-18 1979-06-18 Automatic full-wave/half-wave change-over circuit

Publications (1)

Publication Number Publication Date
JPS562024A true JPS562024A (en) 1981-01-10

Family

ID=13633583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7742479A Pending JPS562024A (en) 1979-06-18 1979-06-18 Automatic full-wave/half-wave change-over circuit

Country Status (1)

Country Link
JP (1) JPS562024A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007298042A (en) * 1997-10-17 2007-11-15 Tacmina Corp Control circuit of solenoid actuated pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007298042A (en) * 1997-10-17 2007-11-15 Tacmina Corp Control circuit of solenoid actuated pump

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