Integrating circuitry for measuring current in a simo converter
AssigneeCree, Inc.
InventorMichael Gilliom
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Abstract
A system includes a single-inductor-multiple-out (SIMO) converter that includes a plurality of output channels, each channel comprising a load, and integrating circuitry in communication with the output channels. The integrated circuitry may be configured to output a signal indicative of a time-accumulated average amount of current drawn through the loads over a sample period. The signal may be used to compare the average current drawn through the output channel with a desired current draw, and to determine whether to change one or more timing parameters used to control the current flow through the SIMO converter.
Claims21
A system comprising:
- a single inductor multiple out (SIMO) converter comprising:
- storage circuitry;
- and
- a plurality of output channels in communication with the storage circuitry, each output channel comprising a load that is configured to draw current received from the storage circuitry;
- and
- integrating circuitry in communication with the SIMO converter, the integrating circuitry being configured to output one or more output signals indicative of a time-accumulated average amount of current drawn through the loads over a sample period.
A method of determining an average current flow in a SIMO converter, the method comprising:
- time-accumulating current over a sample period;
- generating an output signal indicative of the time-accumulated current.
Dependencies are inferred from the claim text.