Abstract: A circuit and method of determining the power output for a converter circuit includes determining a time averaged voltage from a rectified voltage of a winding of the transformer and multiplying the time averaged voltage by a constant determined at least in part by an average current of a winding of the transformer. By one approach, a rectified voltage from a primary side of the transformer is time averaged using a filter circuit. The current can be known or preset or controlled by the converter circuit such that the time averaged voltage reading, assuming a constant current, can be compared to a preset voltage such that the voltage reading approximates a power reading for the transformer. By another approach, the time averaged voltage is multiplied by the current to obtain a power output reading.

Abstract: One example of the invention relates to a power system. The power system can include a power converter configured to convert an input voltage to an output voltage for providing power at an output thereof to which a load is connectable. A measurement system can include measurement circuitry configured to measure an average of an accessible current in the power converter and derive an average measurement of another current in the power converter based on timing control signals used to control operation of the power converter.

Abstract: A circuit and method of determining the power output for a converter circuit includes determining a time averaged voltage from a rectified voltage of a winding of the transformer and multiplying the time averaged voltage by a constant determined at least in part by an average current of a winding of the transformer. By one approach, a rectified voltage from a primary side of the transformer is time averaged using a filter circuit. The current can be known or preset or controlled by the converter circuit such that the time averaged voltage reading, assuming a constant current, can be compared to a preset voltage such that the voltage reading approximates a power reading for the transformer. By another approach, the time averaged voltage is multiplied by the current to obtain a power output reading.