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US 8,570,073 B2Granted
Load driver
AssigneeCypress Semiconductor Corporation
InventorsDavid Wright, Jason Muriby, Erhan Hancioglu
Life of this patent
Estimating the term…
Abstract
A method for driving a load includes driving a load to an initial voltage within a voltage window, the voltage window based on an input voltage and an offset voltage, and driving the load to approximately the input voltage.
Claims20
A method comprising:
- driving a load to an initial voltage within a voltage window, the voltage window based on an input voltage and an offset voltage;
- and
- driving the load, while the initial voltage is non-zero, to approximately the input voltage responsive to the driving of the load to the initial voltage.
A load driver to drive a load, the load driver comprising:
- a high drive circuit coupled with an input voltage and the load;
- a low drive circuit coupled with the input voltage and the load;
- and
- a control circuit coupled with the high drive circuit and the low drive circuit and configured to activate at least one of the high drive circuit and the low drive circuit, the activated high drive circuit configured to drive the load to an output voltage within a voltage range defined by the input voltage and a range voltage, and the activated low drive circuit configured to adjust the output voltage while the output voltage is non-zero to approximate the input voltage, wherein the control circuit is configured to activate the low drive signal, while the output voltage is non-zero, and responsive to the activated high drive circuit driving the load to the output voltage.
1 more element
A system comprising:
- a voltage generator to provide an input voltage;
- a load;
- and
- a load driver, the load driver including:
- a first circuit coupled with the voltage generator and the load, the first circuit configured to drive the load to approximately a threshold voltage level that is within a voltage window;
- and
- a second circuit coupled with the voltage generator and the load, the second circuit configured to drive the load to approximately the input voltage, responsive to the first circuit driving the load to approximately the threshold voltage, and while the approximate threshold voltage is non-zero.
4 more elements
Dependencies are inferred from the claim text.