WO2018046776A1 - Source d'alimentation à découpage de 24-240 volts - Google Patents

Source d'alimentation à découpage de 24-240 volts Download PDF

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Publication number
WO2018046776A1
WO2018046776A1 PCT/ES2016/070627 ES2016070627W WO2018046776A1 WO 2018046776 A1 WO2018046776 A1 WO 2018046776A1 ES 2016070627 W ES2016070627 W ES 2016070627W WO 2018046776 A1 WO2018046776 A1 WO 2018046776A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
capacitor
volts
power supply
supply
Prior art date
Application number
PCT/ES2016/070627
Other languages
English (en)
Spanish (es)
Inventor
Jordi CHAVES GARCÍA
Juan Miguel CHAVES GARCÍA
Original Assignee
Chaves Garcia Jordi
Chaves Garcia Juan Miguel
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 Chaves Garcia Jordi, Chaves Garcia Juan Miguel filed Critical Chaves Garcia Jordi
Priority to PCT/ES2016/070627 priority Critical patent/WO2018046776A1/fr
Publication of WO2018046776A1 publication Critical patent/WO2018046776A1/fr

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
    • H02M3/325—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 using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—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 using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—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 using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • H02M3/33523—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 using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc

Definitions

  • a 24-240 Volt switching power supply preferably a flyback or reverse converter power supply is a DC to DC converter With galvanic isolation between input and output.
  • the present invention characterizes the fact that it can work in such a wide range of voltages ranging from 24 Volts to 240 Volts, regardless of whether the supply voltage is alternating or continuous. To achieve these purposes, functional and structural modifications have been made to the elements used in the switching power supplies currently used.
  • the switching power supply disclosed in WO 2015144943 is known, which is a switching power supply that says it covers the range from 24 volts to 240 volts.
  • the object of the present invention is a 24-240 Volt switched source that in the components of an existing switched source have had to make a series of concurrent modifications in different parts of the usual elements of the switching source, in order to power work in such a wide range of tensions.
  • the voltage regulator used has been modified by canceling the low voltage protection, since usually the market voltage regulators work between 90 to 265 Volts, with a low voltage protection, since they are not able to regulate the output voltage in a stable way for a voltage below 90Volts.
  • a more precise voltage stabilizer has to be provided in the power supply, which ultimately provides a voltage reference fed back to the voltage regulator to achieve Give stability to the output voltage.
  • the output capacitors are low ESR capacitors (equivalent series resistance), which are series low inductance capacitors with the aim of improving the filtering at the output and that there is no noise, due to the switching frequency with the that works, since the switching frequency has had to be high compared to what was being done in the existing switched power supplies when wanting to work in a lower range of voltages.
  • a comparator For the connection and disconnection of the second capacitor that can be connected in parallel to the supply capacitor, a comparator is used whose output activates a solid state switch, for example a mosfet, which in series would allow the second capacitor to be connected or not. Said comparator is also connected to ground, a reference voltage and a sample of the supply voltage obtained by means of, for example, a voltage divider, in collaboration with a voltage limiter. From an electrical engineering point of view, what we do is to increase the capacity of the input bus so that it has enough energy stored in low voltage in alternating form to regulate in a stable way with a network cycle at 50Hz (which is the worst case , in the case of 60Hz it is more favorable).
  • connection decision the second capacitor to come into operation
  • disconnection we want it to be very fast (for protect the capacitor against a voltage surge).
  • the circuit also ensures that when we make a cold start (that is, we have stopped for several seconds), we always start with the secondary capacitor stopped, and do not connect it until we are sure that the case is low voltage.
  • the voltage regulator (3) has been canceled the low voltage protection in order to work at low voltages, so it has been necessary to add a voltage stabilizer (5) of greater precision than those used until the moment.
  • Said stabilizer (3) provides a reference voltage fed back to the voltage regulator (1) so that the output voltage has a stability in the output for the entire voltage range.
  • the voltage regulator (3) is an integrated TOP 261, while the voltage stabilizer (5) is an integrated TL431.
  • the transformer will have wires with an insulation capable of being able to work at 240 Volts and with a section capable of allowing the passage of a maximum current for its power at a voltage of 24 Volts.
  • the output capacitors (6) are low ESR capacitors, that is to say equivalent series low resistance, in order to improve the filtering at the output and that there is no noise. They are capacitors known in the market as low ESR capacitors.
  • a circuit (7) is provided that ensures proper operation in said voltage range and that produces the parallel connection of a second capacitor (8) when the supply voltage is below 50 volts, being disconnected when the supply voltage is above 50 volts.
  • Said circuit (7) comprises a second capacitor (8) that is connected in parallel to the first capacitor (2) by means of a solid state switch (9), the second capacitor (8) being arranged in series with the status switch solid (9), which in a possible embodiment can be a mosfet of channel P.
  • Said solid state switch (9) by means of a connection (13) connects at its base with the output of a comparator (12) and over which a reference voltage is established by means of a diode (14).
  • said comparator (12) is connected to ground and a sample of the supply voltage defined by a voltage divider (10) in collaboration with a second voltage limiter (11), so that when the sample voltage exceeds a certain threshold corresponding to a supply voltage of less than 50 Volts, the comparator (12) is activated and causes the opening of the solid state switch (9) and consequently the connection of the second capacitor (8) in parallel to the first capacitor (2) and when the sample voltage exceeds a certain value that corresponds to a supply voltage greater than 50 volts, the comparator (12) does not activate the connection (13) to the base of the solid state switch (9) and therefore the second capacitor (9) is not connected in parallel to the first capacitor (2).
  • Said connectable capacitor (8) in a possible embodiment of 63 Volts and 470 F.

Abstract

La présente invention concerne une source d'alimentation à découpage de 24-240 Volts de type indirect (flyback) comprenant un condensateur d'approvisionnement en tension (2), un régulateur de tension (3), un transformateur (4) qui présente un stabilisateur de tension (5) à sa sortie, et enfin des condensateurs de sortie (6). En parallèle au condensateur d'approvisionnement en tension (2) se trouve un circuit (7) qui établit la connexion en parallèle d'un condensateur connectable (8) au moyen d'un interrupteur à l'état solide (9), de préférence un MOSFET, qui est connecté au niveau de sa base à la sortie d'un comparateur (12) relié à la terre et à une tension de référence de telle sorte que lorsque la tension de référence dépasse une certaine valeur seuil correspondant à une tension d'alimentation inférieure à 50 Volts. On obtient une source d'alimentation à découpage dont le fonctionnement correct est assuré lorsque la tension fournie est située entre 24 Volts et 50 Volts.
PCT/ES2016/070627 2016-09-07 2016-09-07 Source d'alimentation à découpage de 24-240 volts WO2018046776A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2016/070627 WO2018046776A1 (fr) 2016-09-07 2016-09-07 Source d'alimentation à découpage de 24-240 volts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2016/070627 WO2018046776A1 (fr) 2016-09-07 2016-09-07 Source d'alimentation à découpage de 24-240 volts

Publications (1)

Publication Number Publication Date
WO2018046776A1 true WO2018046776A1 (fr) 2018-03-15

Family

ID=57482460

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2016/070627 WO2018046776A1 (fr) 2016-09-07 2016-09-07 Source d'alimentation à découpage de 24-240 volts

Country Status (1)

Country Link
WO (1) WO2018046776A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060098462A1 (en) * 2003-07-15 2006-05-11 Sanken Electric Co., Ltd. Power supply and its controlling method
US20070047269A1 (en) * 2005-08-31 2007-03-01 Matsushita Electric Industrial Co., Ltd. Output voltage detection circuit, isolated switching power supply, and semiconductor device
DE202013102618U1 (de) * 2013-06-18 2014-09-19 Weidmüller Interface GmbH & Co. KG Netzteil, insbesondere Weitbereichsnetzteil
WO2015144943A1 (fr) 2014-03-27 2015-10-01 CHAVES GARCÍA, Juan Miguel Source d'alimentation commutée de type flyback à tension d'entrée de 24-240 volts

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060098462A1 (en) * 2003-07-15 2006-05-11 Sanken Electric Co., Ltd. Power supply and its controlling method
US20070047269A1 (en) * 2005-08-31 2007-03-01 Matsushita Electric Industrial Co., Ltd. Output voltage detection circuit, isolated switching power supply, and semiconductor device
DE202013102618U1 (de) * 2013-06-18 2014-09-19 Weidmüller Interface GmbH & Co. KG Netzteil, insbesondere Weitbereichsnetzteil
WO2015144943A1 (fr) 2014-03-27 2015-10-01 CHAVES GARCÍA, Juan Miguel Source d'alimentation commutée de type flyback à tension d'entrée de 24-240 volts
EP3024131A1 (fr) * 2014-03-27 2016-05-25 Chaves García, Jordi Source d'alimentation commutée de type flyback à tension d'entrée de 24-240 volts

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