Computer system with power measurement
First Claim
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1. A system, comprising:
- a power supply including a power transformer having a primary side connected to a control transistor controlled by a transformer control signal, the power transformer further having a secondary side coupled to a diode which is further coupled to a filter capacitor and configured to provide regulated DC electrical power to a computer via a positive output node, the power supply further configured with resistors, a second transistor and a diode to define throttle control circuitry with analog signals and to communicate power data to the computer with digital signals via an isolation transformer over a separate throttle control signal, the power data representing electrical power provided from a source to the power supply; and
a computer configured to receive the regulated electrical power on the positive output node and the power data from the separate throttle control signal of the power supply, the computer including a transceiver configured to extract the digital signals superimposed onto the analog signals on the separate throttle control signal.
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Abstract
Apparatus and methods are provided for use with computers. A power supply includes metering to determine the instantaneous and cumulative energy consumption of the power supply and a computer coupled thereto. Communications enable the power supply to communicate corresponding power data to the computer. A user of the computer can then view the power data and assess the effectiveness of energy conservation efforts.
40 Citations
19 Claims
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1. A system, comprising:
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a power supply including a power transformer having a primary side connected to a control transistor controlled by a transformer control signal, the power transformer further having a secondary side coupled to a diode which is further coupled to a filter capacitor and configured to provide regulated DC electrical power to a computer via a positive output node, the power supply further configured with resistors, a second transistor and a diode to define throttle control circuitry with analog signals and to communicate power data to the computer with digital signals via an isolation transformer over a separate throttle control signal, the power data representing electrical power provided from a source to the power supply; and a computer configured to receive the regulated electrical power on the positive output node and the power data from the separate throttle control signal of the power supply, the computer including a transceiver configured to extract the digital signals superimposed onto the analog signals on the separate throttle control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 17)
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13. A power supply, comprising:
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power circuitry configured to receive electrical power from a source and to provide conditioned electrical DC power via a positive output node to a computer wherein the power circuitry includes a power transformer having a primary side connected to the source and a control transistor controlled by a transformer control signal, the power transformer further having a secondary side coupled to a diode which is further coupled to a filter capacitor and; signaling circuitry configured to provide analog signals to the computer over a separate throttle control signal via an isolation transformer, wherein the signaling circuitry includes resistors, a second transistor and a diode to define throttle control circuitry; a controller configured to measure electrical power provided from the source to the power supply and to derive power data corresponding to the measurements; and communications circuitry configured to superimpose digital signals onto the analog signals on the separate throttle control signal, the controller further configured to provide the power data to the computer by way of the communications circuitry. - View Dependent Claims (14, 15, 16, 18, 19)
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Specification