FR2431793A1 - Switched mode power supply with low ripple - peak detects and filters ripple signal to give additional signal to pulse width modulator - Google Patents

Switched mode power supply with low ripple - peak detects and filters ripple signal to give additional signal to pulse width modulator

Info

Publication number
FR2431793A1
FR2431793A1 FR7917628A FR7917628A FR2431793A1 FR 2431793 A1 FR2431793 A1 FR 2431793A1 FR 7917628 A FR7917628 A FR 7917628A FR 7917628 A FR7917628 A FR 7917628A FR 2431793 A1 FR2431793 A1 FR 2431793A1
Authority
FR
France
Prior art keywords
signal
ripple
pulse width
power supply
output
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
FR7917628A
Other languages
French (fr)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2431793A1 publication Critical patent/FR2431793A1/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Rectifiers (AREA)

Abstract

The pulse width modulating system rectifies the a.c mains supply and passes the smoothed result via a switch to a transformer. The transformer's output is rectified and filtered to give the wanted stabilised output voltage suitable for supplying electronic equipment. The output of the transformer's rectifier is also passed to a peak rectifier whose output is filtered, dc isolated and applied inverted to a summation circuit. The summation circuit adds to it the system's output and a ref. and uses the result to control the width of the pulses that pulse the modulation switch.
FR7917628A 1978-07-17 1979-07-06 Switched mode power supply with low ripple - peak detects and filters ripple signal to give additional signal to pulse width modulator Pending FR2431793A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2831406A DE2831406C2 (en) 1978-07-17 1978-07-17 Circuit arrangement for switched-mode power supplies with a pulse duration modulator and a transformer coupled to a rectifier

Publications (1)

Publication Number Publication Date
FR2431793A1 true FR2431793A1 (en) 1980-02-15

Family

ID=6044614

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7917628A Pending FR2431793A1 (en) 1978-07-17 1979-07-06 Switched mode power supply with low ripple - peak detects and filters ripple signal to give additional signal to pulse width modulator

Country Status (5)

Country Link
BE (1) BE877740A (en)
DE (1) DE2831406C2 (en)
FR (1) FR2431793A1 (en)
IT (1) IT1122129B (en)
NL (1) NL7905521A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576163A1 (en) * 1985-01-17 1986-07-18 Alsthom Atlantique Method and devices for attenuating disturbing harmonic currents returned on an electrical supply line by an item of equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2226546A1 (en) * 1971-06-28 1973-01-11 Borg Warner METHOD FOR GENERATING A DC VOLTAGE WITH LOW BUMPER NOISE FROM AN AC VOLTAGE AND DEVICE FOR CARRYING OUT THE METHOD
CH539297A (en) * 1971-12-03 1973-07-15 Landis & Gyr Ag DC voltage converter for generating a stabilized DC voltage that is galvanically separated from a source of fluctuating supply DC voltage and is to be output to consumers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2226546A1 (en) * 1971-06-28 1973-01-11 Borg Warner METHOD FOR GENERATING A DC VOLTAGE WITH LOW BUMPER NOISE FROM AN AC VOLTAGE AND DEVICE FOR CARRYING OUT THE METHOD
CH539297A (en) * 1971-12-03 1973-07-15 Landis & Gyr Ag DC voltage converter for generating a stabilized DC voltage that is galvanically separated from a source of fluctuating supply DC voltage and is to be output to consumers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/78 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576163A1 (en) * 1985-01-17 1986-07-18 Alsthom Atlantique Method and devices for attenuating disturbing harmonic currents returned on an electrical supply line by an item of equipment

Also Published As

Publication number Publication date
DE2831406C2 (en) 1980-09-18
IT1122129B (en) 1986-04-23
BE877740A (en) 1980-01-17
IT7924268A0 (en) 1979-07-11
NL7905521A (en) 1980-01-21
DE2831406B1 (en) 1980-01-24

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