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US 9,793,833 B1Granted
Dynamic braking of an electric motor using capacitive load charging
AssigneeJonathan Johnson
InventorJonathan David Johnson
Life of this patent
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Abstract
The invention disclosed herein is an energy recovery system, for an electric motor, that uses the properties of dynamic braking to directly recharge a capacitive load made up of energy storage devices. The system contains switching circuitry that configures the energy storage devices into a capacitive load when braking is needed. Otherwise, the system configures the energy storage devices into a power supply for regular motor operation.
Claims5
An energy recuperating system that uses control switches and circuitry to produce modes of operation that include a dynamic braking mode and a drive mode;
- the dynamic braking mode uses electrical energy storage devices connected in parallel, as a capacitive load, to cause a connected electric motor to brake;
- simultaneously, the connected electric motor creates an electric current that charges the capacitive load;
- however, in drive mode the electrical energy storage devices are connected in series to form a power source for the connected electric motor.
Dependencies are inferred from the claim text.