Power converter for a thermal system
AssigneeWatlow Electric Manufacturing Company
InventorsStanton H. Breitlow, John Lemke, James Hentges, Keith Ness, Eric Ellis, William Bohlinger, Matthew Yender, Dean R. Mccluskey
Life of this patent
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Abstract
The present disclosure generally describes a method and system for converting power to operate a load being supplied by line power having a line energy. The method includes rectifying the line power, bucking the rectified line power to generate a desired voltage output such that current is drawn from the line power in phase with the desired voltage output, and bypassing switching energy created during the bucking of the rectified line power.
Claims24
A method of converting power to operate a load being supplied by line power having a line energy, the method comprising:
- rectifying the line power;
- bucking the rectified line power to generate a desired voltage output, wherein the bucking creates a switching energy;
- bypassing the switching energy, wherein current is drawn from the line power in phase with the desired voltage output;
- and
- measuring the desired voltage output using a sensor circuit configured to measure the desired voltage output, wherein the sensor circuit includes a current sense resistor, a leakage sense resistor and a field effect transistor configured to shunt the leakage sense resistor.
A system comprising:
- a rectifier configured to receive a line power having a line energy and rectify the line power;
- a buck converter configured to generate a desired voltage output based on the rectified line power, wherein the buck converter creates a switching energy concurrently with the desired voltage output;
- a bypass capacitor disposed between the rectifier and the buck converter and configured to bypass the switching energy to dissipate the switching energy, wherein current is drawn from the line power in phase with the desired voltage output;
- and
- a sensor circuit configured to measure the desired voltage output, wherein the sensor circuit includes a current sense resistor, a leakage sense resistor and a field effect transistor configured to shunt the leakage sense resistor.
A system comprising:
- a rectifier configured to receive a line power having a line energy and rectify the line power;
- a buck converter configured to generate a desired voltage output based on the rectified line power, wherein the buck converter creates a switching energy concurrently with the desired voltage output;
- a bypass capacitor disposed between the rectifier and the buck converter and configured to bypass the switching energy to dissipate the switching energy, wherein current is drawn from the line power in phase with the desired voltage output;
- and
- a sensor circuit configured to measure the desired voltage output, wherein the sensor circuit includes a current sense resistor and a field effect transistor configured to shunt leakage currents.
Dependencies are inferred from the claim text.