[go: up one dir, main page]

JPS6481667A - Controller for pwm type power converter - Google Patents

Controller for pwm type power converter

Info

Publication number
JPS6481667A
JPS6481667A JP62238103A JP23810387A JPS6481667A JP S6481667 A JPS6481667 A JP S6481667A JP 62238103 A JP62238103 A JP 62238103A JP 23810387 A JP23810387 A JP 23810387A JP S6481667 A JPS6481667 A JP S6481667A
Authority
JP
Japan
Prior art keywords
modulation signal
value
circuit
change
rate
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
JP62238103A
Other languages
Japanese (ja)
Inventor
Akira Uenishi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62238103A priority Critical patent/JPS6481667A/en
Publication of JPS6481667A publication Critical patent/JPS6481667A/en
Pending legal-status Critical Current

Links

Landscapes

  • Inverter Devices (AREA)

Abstract

PURPOSE:To prevent the increase of a switching loss and excessive high frequency generation due to the sudden change of a modulation signal without increasing the operating frequency of a power converter main circuit by controlling the absolute value of the rate of change or variation of said modulation signal to a given value and less. CONSTITUTION:A modulation signal ei is compared with the output e01 of a sample and hold circuit 18 by a comparison circuit 14. The deviation e between them is compared with the upper limit set value KP by the comparison circuit 151 of a selection circuit 15 and at the same time with the lower limit set value -KP by a comparison circuit 152. When the modulation signal ei changes largely and suddenly, the output e01 of said sample and hold circuit 18 to be compared with a carrier signal et takes a value increasing or decreasing by KP/ t ( t is a unit time) per modulation signal ei. Therefore, when said rate of change KP/ t is set to a value which is identical with or less than the rate of change of said carrier signal et, it is possible to prevent the increase of the operating frequency of a main circuit.
JP62238103A 1987-09-22 1987-09-22 Controller for pwm type power converter Pending JPS6481667A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62238103A JPS6481667A (en) 1987-09-22 1987-09-22 Controller for pwm type power converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62238103A JPS6481667A (en) 1987-09-22 1987-09-22 Controller for pwm type power converter

Publications (1)

Publication Number Publication Date
JPS6481667A true JPS6481667A (en) 1989-03-27

Family

ID=17025221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62238103A Pending JPS6481667A (en) 1987-09-22 1987-09-22 Controller for pwm type power converter

Country Status (1)

Country Link
JP (1) JPS6481667A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0382369A (en) * 1989-08-25 1991-04-08 Hitachi Ltd power converter
JP2007184726A (en) * 2006-01-05 2007-07-19 Oki Electric Ind Co Ltd Pulse width modulation apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0382369A (en) * 1989-08-25 1991-04-08 Hitachi Ltd power converter
JP2007184726A (en) * 2006-01-05 2007-07-19 Oki Electric Ind Co Ltd Pulse width modulation apparatus

Similar Documents

Publication Publication Date Title
JPS5286120A (en) Stationary power transformer
KR840007644A (en) Voltage simultaneous control and switch type power supply
JPS6481667A (en) Controller for pwm type power converter
JPS5742214A (en) Power amplifier
EP0413514A3 (en) Load compensating gain control for a series resonant inverter
JPS54140154A (en) Stabilized dc power source equipment
JPS57103522A (en) Power supply device
JPS56159969A (en) Transistor driving circuit
EP0196680A3 (en) Switching regulator
ATE52883T1 (en) CIRCUIT ARRANGEMENT FOR LIMITING, REGULATION AND IF POSSIBLE INTERRUPTION OF THE COLLECTOR CURRENT OF THE SWITCHING TRANSISTOR IN THE PRIMARY CIRCUIT OF A SWITCHING POWER SUPPLY UNIT.
EP0234952A3 (en) Electric power source
JPS5699521A (en) Control system of alternating current-direct current converter
JPS6423768A (en) Dc and ac power circuit unit
JPS6464558A (en) Constant voltage type switching power source circuit
JPS53107650A (en) Switching regulator having two power source output
JPS55147980A (en) Switching regulator
FR2256578A1 (en) DC to AC converter with transformer - has switching transistors and storage inductances and diodes
JPS56107782A (en) Switching power source
SU1557655A1 (en) Dc voltage converter
JPS5461650A (en) Reactive power compensator
JPS57151286A (en) Digital speed controller
JPS6448239A (en) Semiconductor laser driving circuit
ES8702752A1 (en) PROCEDURE AND DEVICE FOR THE OPERATION OF AN INTERMEDIATE CIRCUIT CONVERTER
JPS57130128A (en) Switching power supply circuit
JPS531821A (en) Dc-ac converter