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US 8,634,941 B2Granted
System and method for multi-channel control system
AssigneeInfineon Technologies Austria AG
InventorOlivier Dominique Ploix
Life of this patent
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Abstract
In accordance with an embodiment, a system has a pulse width modulation controller configured to successively activate each of a plurality of channels in its own individual channel time slot. The system also has a sampling multiplexer configured to successively sample a signal derived from each of the plurality of channels during each individual channel time slot. Each individual time slot has an individual sampling sequence.
Claims14
A method of operating a multichannel control system, the method comprising:
- writing a command on an interface bus to activate a first channel;
- activating an output on the first channel after writing the command;
- while activating the output on the first channel, sampling a signal derived from a channel other than the first channel;
- after sampling the signal derived from the channel other than the first channel, sampling a signal derived from the first channel;
- converting the sampled signal from the first channel from an analog domain to a digital domain representation;
- writing the digital domain representation to a first channel analog to digital (A/D) register;
- writing the command on the interface bus to read the first channel A/D register;
- and
- reading the first channel A/D register on the interface bus.
6 more elements
A multichannel control system comprising:
- a controller configured to perform the steps of
- writing a command on an interface bus to activate a first channel,
- activating an output on the first channel after writing the command,
- a sampling multiplexer configured to:
- sample a signal derived from a channel other than the first channel, while the output on the first channel is activated,
- after sampling the signal derived from the channel other than the first channel, sampling a signal derived from the first channel;
- a first channel analog to digital (A/D) register;
- and
- an analog to digital converter configured to
- convert the sampled signal from the first channel from an analog domain to a digital domain representation, and
- write the digital domain representation to the first channel A/D register,
- wherein the controller is further configured to
- write a command on the interface bus to read the first channel A/D register, and
- read the first channel A/D register on the interface bus.
11 more elements
Dependencies are inferred from the claim text.