EP1131882A1 - Dispositif d'alimentation en energie et mecanisme de commutation associe a ce dispositif - Google Patents

Dispositif d'alimentation en energie et mecanisme de commutation associe a ce dispositif

Info

Publication number
EP1131882A1
EP1131882A1 EP99962051A EP99962051A EP1131882A1 EP 1131882 A1 EP1131882 A1 EP 1131882A1 EP 99962051 A EP99962051 A EP 99962051A EP 99962051 A EP99962051 A EP 99962051A EP 1131882 A1 EP1131882 A1 EP 1131882A1
Authority
EP
European Patent Office
Prior art keywords
energy
power supply
supply device
switching
czn
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.)
Withdrawn
Application number
EP99962051A
Other languages
German (de)
English (en)
Inventor
Peter Hofreiter
Christian AUMÜLLER
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.)
Infineon Technologies AG
Original Assignee
Infineon Technologies 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 Infineon Technologies AG filed Critical Infineon Technologies AG
Publication of EP1131882A1 publication Critical patent/EP1131882A1/fr
Withdrawn legal-status Critical Current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
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps

Definitions

  • the invention relates to an energy supply device or a circuit arrangement with this energy supply device.
  • the object of the invention is to provide an energy supply device or a circuit arrangement with a data processing device in which it is not possible to draw conclusions about processes or data in the data processing device from the monitoring of the energy consumption.
  • the specified measures also serve to suppress an instantaneous value of the energy consumption on
  • FIG. 1 shows a first exemplary embodiment according to the invention
  • FIG. 2 shows a further development of the exemplary embodiment shown in FIG. 1
  • FIG. 3 shows a further embodiment of the exemplary embodiment shown in FIG. 1
  • FIG. 4 shows a second exemplary embodiment.
  • Fig.l shows a first embodiment of the invention. This shows that a voltage U is present at an input E, which voltage is supplied to a switch S when this switch S assumes a first switching state ZI. Furthermore, the voltage is supplied to a capacitor CZ in this switching state. The capacitor CZ is charged to the value of the voltage U present at the input E. He takes
  • the data processing device 1 in turn is to be operated at a clock rate T. If the switchover frequency used to charge the capacitor C again and again is less than twice the clock rate T, the current with which the data processing device 1 can be inferred cannot be deduced from the charging current which charges the capacitor CZ is operated from the capacitor C.
  • sampling filter now makes it possible to deliberately violate the sampling theorem with a switching frequency (sampling frequency) that is below twice the switching frequency of the circuit and thus to make the reconstruction of the original current curve considerably more difficult.
  • sampling frequency sampling frequency
  • the reconstruction can be made more difficult by the temporal variation of the switching frequency.
  • capacitors ZI to ZN are provided, which are charged with the voltage U from the voltage input via respective switches S1 to SN. It is now provided that either the capacitors are charged simultaneously with the input voltage U in order to be subsequently connected in parallel to the capacitor C. This reduces the voltage ripple across capacitor C without transmitting more information to input E. Another possibility is to continuously connect the capacitors CZ1 to CZN in a more complex order to the input E and to the capacitor C. In both cases, the charging current obtained from the input voltage is equalized or smoothed. Furthermore, it can be provided in both cases that the arrangement described is operated as a voltage regulator for the data processing device 1. In this case, the changeover rate T is regulated as a function of the current consumption, that is to say of the supply voltage UV.
  • FIG. 1 A further development of the exemplary embodiment shown in FIG. 1 is shown in FIG.
  • the switch S has a third state Z3.
  • a parallel voltage regulator 2 is provided in parallel with the capacitor C and the data processing device 1.
  • the difference in operation as shown in Fig. 3, to the arrangement shown in Fig.l, lies in the fact that after reloading the charge stored on the capacitor CZ to the capacitor C, the switch S assumes the state Z3. In this position, the capacitor is connected in parallel to a discharge circuit 3. This discharge circuit 3 now discharges the capacitor CZ to a predetermined value. Then the switch S switches back to the state ZI, so that the capacitor CZ is connected to the input E, so that it is recharged by the input voltage U. In this way, the capacitor has CZ the new charging to a predetermined state, so that it is always charged with the same charging current from the input voltage U.
  • All three configurations of the first exemplary embodiment according to the invention are suitable for being designed as an integrated circuit on a semiconductor chip.
  • a data processing device which requires a supply voltage of two volts and operates with an average power loss of 2 mW watts, an input voltage of 3 volts at a switching frequency of 1 MHz and a capacitance of 1 nF for the capacitor CZ.
  • a current of 1 mA is transmitted.
  • the switch S is formed by a conventional electronic switch.
  • the circuit arrangement is preferred for integrated circuits which are produced using a technology using ferroelectric dielectrics.
  • the dielectric constant E can be used, increased compared to the previously used dielectric constants, so that in such a case a smaller area is required for a given capacitance.
  • Fig. Shows a second embodiment.
  • the capacitance CZ according to FIGS. 1 to 3 is replaced by an inductance.
  • the switch S causes the following by switching from state ZI to state Z2.
  • a current I (T) is impressed into the inductance L, so that a magnetic field is formed.
  • This magnetic field corresponds to a magnetic energy stored by this coil.
  • switch S changes from state ZI to state Z2, the coil is again connected to the capacitor sator C connected, which is in turn charged from the magnetic energy stored in the inductor L by a charging current to a voltage UV (T).
  • a so-called free-wheeling diode D In order to prevent the occurrence of overvoltages when switching from the state ZI to the state Z2, a so-called free-wheeling diode D must be provided in parallel with the inductance L. If it is not possible to integrate the inductance L on the semiconductor chip, it can at least be arranged directly on the surface of the semiconductor chip.
  • FIG. 2 and FIG. 3 The further developments according to FIG. 2 and FIG. 3 can be correspondingly transferred to this second exemplary embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

Dispositif d'alimentation en énergie qui est doté d'un accumulateur intermédiaire (CL; LL) d'énergie, d'un accumulateur principal (C) d'énergie et d'un mécanisme de commutation (S), ledit mécanisme de commutation (S) présentant au moins deux états de commutation. Dans un premier état de commutation, l'accumulateur intermédiaire (CZ; L) d'énergie est couplé à une entrée (E) d'alimentation en énergie et dans un deuxième état de commutation, il est couplé à l'accumulateur principal (C) d'énergie, lui-même couplé à une sortie (A) d'alimentation en énergie.
EP99962051A 1998-11-19 1999-11-18 Dispositif d'alimentation en energie et mecanisme de commutation associe a ce dispositif Withdrawn EP1131882A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19853448 1998-11-19
DE19853448 1998-11-19
PCT/DE1999/003673 WO2000031864A1 (fr) 1998-11-19 1999-11-18 Dispositif d'alimentation en energie et mecanisme de commutation associe a ce dispositif

Publications (1)

Publication Number Publication Date
EP1131882A1 true EP1131882A1 (fr) 2001-09-12

Family

ID=7888380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99962051A Withdrawn EP1131882A1 (fr) 1998-11-19 1999-11-18 Dispositif d'alimentation en energie et mecanisme de commutation associe a ce dispositif

Country Status (7)

Country Link
US (1) US20010056551A1 (fr)
EP (1) EP1131882A1 (fr)
JP (1) JP2002531049A (fr)
KR (1) KR20010080504A (fr)
CN (1) CN1326607A (fr)
BR (1) BR9915482A (fr)
WO (1) WO2000031864A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6535076B2 (en) * 2001-05-15 2003-03-18 Silicon Valley Bank Switched charge voltage driver and method for applying voltage to tunable dielectric devices
GB0303875D0 (en) * 2003-02-19 2003-03-26 Halliburton Man Ltd Electrical power supply arrangement for a downhole measurement assembly
US10250058B2 (en) * 2016-09-15 2019-04-02 Raytheon Company Charge management system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61161967A (ja) * 1985-01-10 1986-07-22 Nec Corp トランスレス電源回路
JPH02146955A (ja) * 1988-08-30 1990-06-06 Michiko Naito 静電トランス
US5278489A (en) * 1992-05-29 1994-01-11 Scitex Digital Printing, Inc. Multi-phase switching power supply
JP3224744B2 (ja) * 1996-07-08 2001-11-05 富士通株式会社 降圧型ｄｃ−ｄｃレギュレータ
WO2000013300A1 (fr) * 1998-08-31 2000-03-09 Infineon Technologies Ag Dispositif d'alimentation en courant et circuit associe a ce dispositif

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0031864A1 *

Also Published As

Publication number Publication date
US20010056551A1 (en) 2001-12-27
BR9915482A (pt) 2001-07-31
JP2002531049A (ja) 2002-09-17
KR20010080504A (ko) 2001-08-22
WO2000031864A1 (fr) 2000-06-02
CN1326607A (zh) 2001-12-12

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