ENERGY RECOVERY DRIVER FOR PZT ACTUATORS
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Feb 8, 2024
app pub date -
Jul 14, 2023
filing date -
Aug 2, 2022
priority date (Note) -
Published
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
A differential piezoelectric actuator-system includes an inductor and driver-circuit having switches for transferring energy between first and second actuators and the inductor, and between a voltage-supply node and the inductor. Control circuitry determines whether a next phase in which to operate the driver-circuit is a first charging-phase or a first recovery-phase. The first charging-phase includes operating the switches in: a first sub-phase to transfer energy from the first actuator to the inductor; a second sub-phase to transfer energy from the voltage supply node to the inductor; and a third sub-phase to transfer energy from the inductor to the second actuator. The first recovery-phase includes operating the switches in: a first sub-phase to transfer energy from the first actuator to the inductor; a second sub-phase to transfer energy from the inductor to the voltage supply node; and a third sub-phase to transfer energy from the inductor to the second actuator.
First Claim
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Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
US | A1 | US20240049603 | Aug 02, 2022 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
FIRST PUBLISHED PATENT APPLICATION | ENERGY RECOVERY DRIVER FOR PZT ACTUATORS | Feb 08, 2024 | |||
EP | A1 | EP4326038 | Jul 28, 2023 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
APPLICATION PUBLISHED WITH SEARCH REPORT | ENERGY RECOVERY DRIVER FOR PZT ACTUATORS | Feb 21, 2024 | |||
CN | A | CN117498716 | Aug 01, 2023 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
UNEXAMINED APPLICATION FOR A PATENT FOR INV. | Energy recovery driver for PZT actuator | Feb 02, 2024 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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STMICROELECTRONICS S R L | VIA C OLIVETTI 2 AGRATE BRIANZA (MB) I-20041 |
International Classification(s)

- 2023 Application Filing Year
- H02J Class
- 4025 Applications Filed
- 995 Patents Issued To-Date
- 24.73 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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FURCERI, Raffaele Enrico | Legnano, IT | 5 | 0 |
# of filed Patents : 5 Total Citations : 0 | |||
GIANOLLO, Matteo | Monza (MB), IT | 2 | 0 |
# of filed Patents : 2 Total Citations : 0 | |||
LANGFELDER, Giacomo | Milano, IT | 21 | 32 |
# of filed Patents : 21 Total Citations : 32 | |||
ZAMPROGNO, Marco | Cesano Maderno (MB), IT | 48 | 236 |
# of filed Patents : 48 Total Citations : 236 |
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Patent Citation Ranking
- 0 Citation Count
- H02J Class
- 0 % this patent is cited more than
- 1 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Aug 8, 2027 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 8, 2031 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 8, 2035 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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