Global patent index - EP 0972335 A2

EP 0972335 A2 2000-01-19 - THERMAL POWER CONVERTER FOR SUPPLYING ELECTRICITY TO AN AUTONOMOUS APPARATUS WITH LOW CONSUMPTION FROM A VERY SLIGHT DIFFERENCE IN TEMPERATURE

Title (en)

THERMAL POWER CONVERTER FOR SUPPLYING ELECTRICITY TO AN AUTONOMOUS APPARATUS WITH LOW CONSUMPTION FROM A VERY SLIGHT DIFFERENCE IN TEMPERATURE

Title (de)

LEISTUNGSSTROMVERSORGUNG MIT NIEDRIGEM VERBRAUCH VON EINER QUELLE MIT SEHR SCHWACHER SPANNUNG

Title (fr)

CONVERTISSEUR DE PUISSANCE THERMIQUE PERMETTANT D'ALIMENTER EN ELECTRICITE UN APPAREIL AUTONOME A CONSOMMATION REDUITE A PARTIR D'UNE TRES FAIBLE DIFFERENCE DE TEMPERATURE

Publication

EP 0972335 A2 (FR)

Application

EP 97948967 A

Priority

  • FR 9702165 W
  • FR 9614734 A
  • FR 9710338 A

Abstract (en)

[origin: WO9825333A2] The invention concerns an energy converting circuit, boosting the voltage supplied by a low direct voltage source (1), comprising a self-oscillating circuit, operating at very low voltage, using a voltage boosting transformer (3, 4, 6, 6', 7) generating the control signals of two chopper-boosters (11-14) operating alternately, comprising an enhancement-type field effect transistor (11, 12) used in synchronous switching with the self-oscillating circuit, which is in serial connection with an inductive resistor (13, 14) to the terminals of said source (1) and which is connected to a user circuit via a diode (15, 16). The invention also concerns a device for supplying electricity to appliances using such a supply device. The invention further concerns the production of thermal converters for the utilisation of low-voltage thermoelectricity, and a method for the manufacture of thermal converters on an industrial scale.

IPC 1-7 (main, further and additional classification)

H02M 3/338

IPC 8 full level (invention and additional information)

G04G 99/00 (2010.01); G04C 10/00 (2006.01); G04G 19/00 (2006.01); G04G 19/02 (2006.01); H02M 3/155 (2006.01); H02M 3/338 (2006.01)

CPC (invention and additional information)

H01L 35/32 (2013.01); G04C 10/00 (2013.01); H01L 35/30 (2013.01); H02M 3/338 (2013.01)

Citation (search report)

See references of WO 9825333A2

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9825333 A2 19980611; WO 9825333 A3 19981105; CA 2274008 A1 19980611; EP 0972335 A2 20000119; JP 2002518989 A 20020625; US 6340787 B1 20020122

INPADOC legal status

2002-07-24 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020109

2001-10-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010829

2000-01-19 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990702

2000-01-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE