Power supply output monitor
First Claim
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1. A DC power supply monitoring system comprising:
- a power supply controller configured to form a control signal used for regulating an output voltage on a power supply output to a desired value, the power supply controller configured to receive a first sense signal that is representative of a value of the output voltage and to receive a second sense signal that is representative of a load current supplied to a load;
a monitoring circuit configured to generate a monitor signal responsively to the first sense signal and the second sense signal, the monitor signal having a pulse waveform with information on more than one aspect of the power supply output represented in a single pulse cycle of the monitor signal wherein an amplitude and a time interval of the single pulse cycle represents the information.
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Abstract
A power supply monitoring system generates a monitor signal having information on more than one aspect of the power supply output. In one example embodiment, the monitor signal may be implemented as a square wave in which the duty cycle is proportional to output current, the peak amplitude is proportional to output voltage, and the average value is equal to output power.
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22 Claims
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1. A DC power supply monitoring system comprising:
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a power supply controller configured to form a control signal used for regulating an output voltage on a power supply output to a desired value, the power supply controller configured to receive a first sense signal that is representative of a value of the output voltage and to receive a second sense signal that is representative of a load current supplied to a load; a monitoring circuit configured to generate a monitor signal responsively to the first sense signal and the second sense signal, the monitor signal having a pulse waveform with information on more than one aspect of the power supply output represented in a single pulse cycle of the monitor signal wherein an amplitude and a time interval of the single pulse cycle represents the information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification