A method of balancing power consumption between loads
A technology of balance and power consumption, applied in the direction of sustainable building, liquid/fluid solid measurement, instrumentation, etc., can solve the problems of resistor waste energy, need extra, reduce power supply life, etc.
Inactive Publication Date: 2009-07-01
KONINK PHILIPS ELECTRONICS NV
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Problems solved by technology
A disadvantage of the approach proposed in the above-cited literature is that an additional variable resistor is required, the resistance of which is adjusted to compensate for any variation in the power supply
Especially in low power systems, resistors waste a relatively large amount of energy, which leads to a reduction in the lifetime of the power supply
Method used
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Embodiment Construction
[0035] figure 1 A block diagram of the electronic device 100 is shown. The electronic device 100 includes a power source 102 , a first device 104 , a second device 106 and a microprocessor 108 . The power source 102 provides an actual voltage 110 via electrical connections 118 and 120 to a first device 104 which applies a first load 114 to the power source 102 . The power supply 102 provides the actual output voltage 110 via electrical connections 122 and 124 to a second device 106 which applies a second load 116 to the power supply. In the example described here, the first device 104 and the second device 106 are connected to the power source 102 in parallel. However, the scope of the invention should not be limited to this arrangement, since the method according to the invention can also be used in the case where the first device 104 and the second device 106 are connected in series.
[0036] During or after startup of the electronic device 100, the microprocessor 108 exe...
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There is provided a method of balancing power consumption between a first load and at least one second load, wherein the first load and the at least one second load are connected to a power supply, and wherein the method comprises the step of determining deviations in an actual output voltage with respect to a desired voltage of the power supply, wherein the deviations are due to a change of the magnitude of any of the at least one second load. The method further comprises the step of regulating the first load until the actual output voltage corresponds to the desired voltage for a compensation of the change of the magnitude. The first load is preferably due to a processor. The first load of the processor is thus adjusted in order to compensate for the change of the second load. Preferably, the processor load is adapted by an adaptation of the processor's clock frequency. The method in accordance with the invention is particularly advantageous as the processor itself is a consumer of the apparatus and hence no energy is wasted for load compensation as no extra component is required that is only used for load compensation.
Description
technical field [0001] The present invention relates generally to methods of balancing power consumption between loads, and in particular to a method of balancing power consumption between loads one of which is caused by a processor. In other aspects, the invention relates to electronic equipment and computer program products comprising instructions for performing the method according to the invention. Background technique [0002] DC power supplies are commonly used to supply electrical power to electronic circuits, such as integrated electronic circuits. A battery is an example of such a DC power source. Real world DC power supplies are non-ideal power supplies. Variations in the load applied by components powered by the power supply cause deviations in the output voltage due to non-idealities in the power supply. These deviations are also called ripples. Such ripples may cause disturbances in the analog circuits that may lead to performance degradation of the system o...
Claims
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IPC IPC(8): G06F1/26G06F1/32
CPCG06F1/26G06F1/324Y02B60/1217Y02D10/00
Inventor S·艾尔特斯
Owner KONINK PHILIPS ELECTRONICS NV