Preventing reverse input current in a driver system
AssigneeIntegrated Memory Logic, Inc.
InventorWon Jung Cho
Life of this patent
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Abstract
In one embodiment, a method is provided for preventing reverse input current from flowing into a power source. The method includes: providing a system having a plurality of operating modes for driving a load, wherein in each operating mode the power delivered to the load is a multiple of the power output from the power source; transitioning the system from one operating mode into another operating mode under predetermined conditions; if the power delivered to the load is greater than the power delivered to the power source, delaying the transition of the system from the one operating mode into the other operating mode
Claims16
A method for preventing reverse input current from flowing into a power source, the method comprising:
- providing a system having a plurality of operating modes for driving a load, wherein in each operating mode the power delivered to the load is a multiple of the power output from the power source;
- transitioning the system from one operating mode into another operating mode under predetermined conditions;
- if the system transitions from a higher operating mode to a lower operating mode and the power delivered to the load is greater than the power output from the power source, delaying the transition of the system from the higher operating mode into the lower operating mode.
In a system having a plurality of operating modes for driving a load, wherein in each operating mode the power delivered to the load is a multiple of the power output from the power source, a method for preventing reverse input current from flowing into the power source, the method comprising:
- comparing the power delivered to the load with the power output from the power source when transitioning the system from a higher operating mode into a lower operating mode;
- and
- if the comparison finds that the power delivered to the load is greater than the power delivered from the power source, delaying the transition of the system from the higher operating mode into the lower operating mode.
Dependencies are inferred from the claim text.