JPS55147710A - Power supply unit - Google Patents

Power supply unit

Info

Publication number
JPS55147710A
JPS55147710A JP5499279A JP5499279A JPS55147710A JP S55147710 A JPS55147710 A JP S55147710A JP 5499279 A JP5499279 A JP 5499279A JP 5499279 A JP5499279 A JP 5499279A JP S55147710 A JPS55147710 A JP S55147710A
Authority
JP
Japan
Prior art keywords
voltage
head
heaters
stable
power supply
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
JP5499279A
Other languages
Japanese (ja)
Inventor
Masayoshi Hirashima
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 JP5499279A priority Critical patent/JPS55147710A/en
Publication of JPS55147710A publication Critical patent/JPS55147710A/en
Pending legal-status Critical Current

Links

Landscapes

  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

PURPOSE: To obtain excellent print without contrast, by applying the stable voltage from the output transistor of the voltage regulating circuit to the heater of the printer head.
CONSTITUTION: The printer head 2 having the heaters 3aW3r are driven with pulse signal, and current is fed to the load head 2 via the voltage regulating circuit 9 from the power supply 8 in which the output voltage is not stable at the pulse period. Further, when the print operation is made with the head 2, that is, when the timing pulse is at high level, constant and stable reference voltage is obtained with the constant voltage diode 17, the regulated reference voltage is fed to the heaters 3aW 3r of the head 2 from the output transistor 10 of the circuit 9, and always constant current flows independently of the number of heaters in operation and excellent print without contrast can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP5499279A 1979-05-04 1979-05-04 Power supply unit Pending JPS55147710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5499279A JPS55147710A (en) 1979-05-04 1979-05-04 Power supply unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5499279A JPS55147710A (en) 1979-05-04 1979-05-04 Power supply unit

Publications (1)

Publication Number Publication Date
JPS55147710A true JPS55147710A (en) 1980-11-17

Family

ID=12986140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5499279A Pending JPS55147710A (en) 1979-05-04 1979-05-04 Power supply unit

Country Status (1)

Country Link
JP (1) JPS55147710A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002198221A (en) * 2000-12-25 2002-07-12 Fuji Koki Corp Electromagnetic actuator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50106603A (en) * 1974-01-16 1975-08-22
JPS5153241A (en) * 1974-11-05 1976-05-11 Sharp Kk IJODENRYUKENCHISOCHI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50106603A (en) * 1974-01-16 1975-08-22
JPS5153241A (en) * 1974-11-05 1976-05-11 Sharp Kk IJODENRYUKENCHISOCHI

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002198221A (en) * 2000-12-25 2002-07-12 Fuji Koki Corp Electromagnetic actuator

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