Processing

Please wait...

Settings

Settings

Goto Application

1. WO2002025816 - A HIGH-EFFICIENCY DRIVER CIRCUIT FOR CAPACITIVE LOADS

Publication Number WO/2002/025816
Publication Date 28.03.2002
International Application No. PCT/EP2001/010776
International Filing Date 18.09.2001
IPC
H03K 4/94 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
4Generating pulses having essentially a finite slope or stepped portions
94having trapezoidal shape
H03K 17/00 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and -breaking
H03K 17/16 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and -breaking
16Modifications for eliminating interference voltages or currents
CPC
H01L 41/042
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
41Piezo-electric devices in general; Electrostrictive devices in general; Magnetostrictive devices in general; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
02Details
04of piezo-electric or electrostrictive devices
042Drive or control circuitry or methods for piezo-electric or electrostrictive devices not otherwise provided for
H03K 17/162
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and –breaking
16Modifications for eliminating interference voltages or currents
161in field-effect transistor switches
162without feedback from the output circuit to the control circuit
H03K 2217/0036
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
2217Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
0036Means reducing energy consumption
H03K 4/94
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
4Generating pulses having essentially a finite slope or stepped portions
94having trapezoidal shape
Applicants
  • STMICROELECTRONICS S.R.L. [IT]/[IT] (AllExceptUS)
  • BATTAGLIN, Luca [IT]/[IT] (UsOnly)
  • GALLINA, Pietro [IT]/[IT] (UsOnly)
  • SABA, Giancarlo [IT]/[IT] (UsOnly)
  • ZINCO, Giancarlo [IT]/[IT] (UsOnly)
  • DIAZZI, Claudio [IT]/[IT] (UsOnly)
  • PEDUTO, Vittorio [IT]/[IT] (UsOnly)
Inventors
  • BATTAGLIN, Luca
  • GALLINA, Pietro
  • SABA, Giancarlo
  • ZINCO, Giancarlo
  • DIAZZI, Claudio
  • PEDUTO, Vittorio
Agents
  • BOTTI, Mario
Priority Data
MI2000A00204419.09.2000IT
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A HIGH-EFFICIENCY DRIVER CIRCUIT FOR CAPACITIVE LOADS
(FR) CIRCUIT D'ATTAQUE A HAUT RENDEMENT POUR CHARGES CAPACITIVES
Abstract
(EN)
The invention relates to a high-efficiency driver circuit for capacitive loads, which circuit comprises a drive portion (12) connected to at least one end (X) of a capacitive electric load (11) being applied a voltage waveform. Advantageously, this circuit further comprises a switching circuit portion (13) having its output connected to the above one end (X) of the capacitive load (11) in order to supply a fraction of the overall current demanded by the load (11). Briefly, the invention is a circuit arrangement aimed at providing a highly efficient drive for the capacitive load, using a combined linear/switching setup and without debasing the quality of the waveform generated across the capacitive load.
(FR)
Cette invention se rapporte à un circuit d'attaque à haut rendement pour charges capacitives, ce circuit comprenant une partie d'attaque (12) connectée à au moins une extrémité (X) d'une charge électrique capacitive (11) à laquelle est appliquée une forme d'onde de tension. Avantageusement, ce circuit comprend en outre une partie circuit de commutation (13) dont la sortie est connectée à ladite extrémité (X) de la charge capacitive (11), de façon à fournir une fraction du courant total demandé par la charge (11). En bref, cette invention est constituée par un système de circuit visant à fournir une attaque à haut rendement pour la charge capacitive, à l'aide d'un montage linéaire/de commutation combiné et sans dégrader la qualité de la forme d'onde produite à travers la charge capacitive.
Latest bibliographic data on file with the International Bureau