Evaluation apparatus for power supply system
AssigneePfu Limited
InventorKouji Kanamaru
Life of this patent
Estimating the term…
Abstract
In an evaluation apparatus for measuring the fluctuation of a voltage and a current on a power supply line and evaluating the result of the measurement, the apparatus includes: a dummy load connected to the power supply line instead of an actual function unit to measure the fluctuation of the voltage and the current on the power supply line; and a switch connected to the dummy load for turning ON/OFF the dummy load instead of performing an inserting/removing operation thereof. Further, the above switch can replace to a switching control circuit connected to the dummy load for continuously switching turning ON/OFF state of the dummy load instead of repeatedly performing an inserting/removing operation of the dummy load.
Claims6
An evaluation apparatus for measuring the fluctuation of a voltage and a current on a power supply line and evaluating the result of said measurement, comprising:
- a dummy load connected to the power supply line to measure the fluctuation of the voltage and the current on the power supply line, said dummy load comprising:
- a capacitive load,
- a resistive load connected in parallel with said capacitive load,
- a current control circuit, connected to said capacitive load and to said resistive load, which controls the current flow to said capacitive load and said resistive load, and
- a time constant circuit connected to said current control circuit for controlling the flow of current to said current control circuit;
- and
- a switch connected to said dummy load for turning ON/OFF said dummy load and thereby simulating an operation of inserting/removing the dummy load to and from the power supply line.
An evaluation apparatus as claimed in claim 5, wherein said dummy load further comprises:
- a plurality of parallel-connected capacitive load modules;
- a plurality of parallel-connected resistive load modules;
- a current control circuit connected to said plurality of parallel-connected capacitive load modules and said plurality of parallel-connected resistive load modules, said current control circuit controlling a current to said plurality of parallel-connected capacitive load modules and said plurality of parallel-connected resistive load modules;
- and
- a time constant circuit connected to said current control circuit which controls the current to said current control circuit.
Dependencies are inferred from the claim text.