Power regulator for use with wireless communication device
OwnerMark Sinreichinventor
Life of this patent
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Abstract
A power regulator includes an initial input, an output, a feedback input, and a comparison circuit. The initial input is configured to receive loop current at an insertion voltage. The output is configured to deliver charging power. The charging power changes at least partially in response to a change in the loop current. The comparison circuit is in electrical communication with the feedback input and is configured to regulate the insertion voltage. A wireless communication device is in electrical communication with the output of the power regulator and is configured to be powered by the charging power.
Claims28
A power management circuit comprising:
- a power regulator comprising:
- an initial input configured to receive a loop current at an insertion voltage;
- an output configured to deliver charging power, wherein the charging power changes at least partially in response to a change in the loop current;
- a feedback input;
- and
- a comparison circuit in electrical communication with the feedback input and configured to regulate the insertion voltage;
- and
- a wireless communication device in electrical communication with the output of the power regulator and configured to be powered by the charging power.
A process control apparatus comprising:
- a field device;
- a power supply in electrical communication with the field device, the power supply being configured to transmit loop current to the field device and the field device being configured to regulate the loop current;
- a power regulator comprising:
- an initial input configured to receive the loop current at an insertion voltage;
- an output configured to deliver charging power, wherein the charging power changes at least partially in response to a change in the loop current;
- a feedback input;
- and
- a comparison circuit in communication with the feedback input, the comparison circuit being configured to regulate the insertion voltage to a reference value;
- and
- a wireless communication device in electrical communication with the output of the power regulator and configured to be powered by the charging power.
Dependencies are inferred from the claim text.