Actuator drive and energy recovery system
AssigneeMotorola, Inc.
InventorsMark D. Gunderson, George T. Maly
Life of this patent
Estimating the term…
Abstract
An actuator drive and energy recovery system (50) includes a power supply (52), a charge switching element (58), a recovery switching element (60), a resonating inductor (64) for increasing a voltage supplied to a load (66) thereby providing a single path through the single inductor (64) for charging and recovering energy between the power supply (52) and the load (66).
Claims12
An Actuator drive and energy recovery system comprising:
- a power supply presenting at least first and second serially interconnected output terminals and a grounded terminal;
- a charge switching element connected to the first output terminal;
- a recovery switching element connected to the second output terminal;
- and
- a resonating inductor connected between both the charge and recovery switching elements and a load for increasing a voltage supplied to the load above a voltage supplied by the power supply thereby providing a single path for charging and recovering energy between the power supply and the load.
An actuator drive and energy recovery system for selectively driving and recovering energy from multiple loads, the system comprising:
- charge means for charging multiple loads;
- energy recovery means operably coupled to the charge means and the loads;
- resonating means operably coupled to the charge and energy recovery means and the loads for increasing a voltage supplied to the loads above a voltage supplied by the charge means and recovering energy from the loads;
- and
- bi-directional switching means interconnected between each load and the resonating means for selectively enabling each load and to provide a single switch for both charging each load and recovering energy from each load.
An actuator drive and energy recovery circuit comprising:
- power supply means presenting first and second interconnected output terminals and a grounded terminal;
- charge switching means connected to the first output terminal;
- recovery switching means connected to the second output terminal;
- and
- resonating means connected between both the charge and recovery switching means and a load for increasing a voltage supplied to the load above a voltage supplied by the power supply means and providing a single path for charging and recoverying energy between the power supply and the capacitive load.
An actuator drive and energy recovery system for driving and recovering energy from multiple capacitive loads, the system comprising:
- a power supply presenting at least first and second serially interconnected output terminals and a grounded terminal;
- a charge switching element connected to the first output terminal;
- a recovery switching element connected to the second output terminal;
- a resonating inductor connected between both the charge and recovery switching elements and a load for increasing a voltage supplied to the load above a voltage supplied by the power supply thereby providing a single path for charging and recovering energy between the power supply and the load;
- and
- a plurality of bi-directional switching elements interconnected between each capacitive load and the resonating inductor for selectively enabling each capacitive load and to provide a single switch for both charging each capacitive load and recovering energy from each capacitive load.
Dependencies are inferred from the claim text.