JPS57115005A - Load driving circuit - Google Patents

Load driving circuit

Info

Publication number
JPS57115005A
JPS57115005A JP56001473A JP147381A JPS57115005A JP S57115005 A JPS57115005 A JP S57115005A JP 56001473 A JP56001473 A JP 56001473A JP 147381 A JP147381 A JP 147381A JP S57115005 A JPS57115005 A JP S57115005A
Authority
JP
Japan
Prior art keywords
frequency
voltage
ripple
transistors
signal
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
JP56001473A
Other languages
Japanese (ja)
Other versions
JPH027521B2 (en
Inventor
Susumu Sueyoshi
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic Corp
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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP56001473A priority Critical patent/JPS57115005A/en
Publication of JPS57115005A publication Critical patent/JPS57115005A/en
Publication of JPH027521B2 publication Critical patent/JPH027521B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To increase the power conversion efficiency and to make less beat interference, by turning on/off a switching element through the use of a PWM signal having a repetitive frequency 2n times the frequency of an AC voltage.
CONSTITUTION: A clock pulse (h) from a clock generator 13 becomes a rectangular wave pulse (i) frequency-divided to 1/2 at a frequency divider 15 and is supplied to a control circuit 4 via an isolator 16, transistors Q1, Q2 are turned on/off alternately and a rectangular AC voltage is outputted on the secondary winding L2 of a transformer T. Power supply voltages +Vcc, -Vcc obtained through full-wave rectification of the AC voltage include ripple. On the other hand, a PWM amplifier 6 is so constituted that an input signal vi is sampled with a saw-tooth wave signal (a) generated in synchronizing with the clock pulse (h) to obtain a PWM signal, then the above-mentioned ripple and the transit point of transistors Q3, Q4 are overlapped, allowing to neglect the effect of ripple at a push-pull output (f).
COPYRIGHT: (C)1982,JPO&Japio
JP56001473A 1981-01-08 1981-01-08 Load driving circuit Granted JPS57115005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56001473A JPS57115005A (en) 1981-01-08 1981-01-08 Load driving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56001473A JPS57115005A (en) 1981-01-08 1981-01-08 Load driving circuit

Publications (2)

Publication Number Publication Date
JPS57115005A true JPS57115005A (en) 1982-07-17
JPH027521B2 JPH027521B2 (en) 1990-02-19

Family

ID=11502422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56001473A Granted JPS57115005A (en) 1981-01-08 1981-01-08 Load driving circuit

Country Status (1)

Country Link
JP (1) JPS57115005A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8054053B2 (en) 2008-02-27 2011-11-08 Onkyo Corporation Audio apparatus, switching power supply, and switching control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8054053B2 (en) 2008-02-27 2011-11-08 Onkyo Corporation Audio apparatus, switching power supply, and switching control method

Also Published As

Publication number Publication date
JPH027521B2 (en) 1990-02-19

Similar Documents

Publication Publication Date Title
ES8502583A1 (en) High frequency x-ray generator power supply.
JPS5292321A (en) Power supply circuit
US4257089A (en) Regulated variable frequency DC/DC converter
MY105258A (en) A switch-mode power supply with burst mode stanby operation
JPS5513673A (en) Servo-circuit of direct current motor
JPS57115005A (en) Load driving circuit
JPS5577372A (en) Multi-output converter
JPS5612869A (en) Pwm inverter device
JPS54118787A (en) X-ray device
JPS54121923A (en) Dc to dc converter circuit
FR2274162A1 (en) DC to DC converter - uses variable form-factor power drive to give stable multiple outputs
JPS56111922A (en) Power generation system
JPS5563597A (en) Inverter device
JPS5529290A (en) Emergency three-phase ac power supply
JPS5787217A (en) Load driving circuit
JPS5416648A (en) Harmonic current compensator
JPS5694962A (en) Transformerless type dc/dc converter
JPS57146326A (en) Switching regulator circuit
JPS5642817A (en) High-frequency switching type direct current stabilized power supply unit
JPS548832A (en) Constant voltage constant frequency power unit
JPS5467340A (en) Magnetic bubble unit
JPS53117708A (en) One transistor dc to dc converter
JPS54126922A (en) Dc-dc converting circuit
JPS6315674A (en) Dc/ac converter
JPS57184307A (en) Power supply voltage control type amplifier