Power unit and image forming system
AssigneeKonica Minolta Business Technologies, Inc.
InventorsHiroyuki Watanabe, Ryuji Okutomi, Hideo Yamane, Yoshihito Sasamoto
Life of this patent
Estimating the term…
Abstract
Present invention uses the main power source and auxiliary power source to supply power to a load, makes them take partial charge of power supply, and when the load current reaches its peak, detects a current and a voltage generated by the auxiliary power source, and when the detected values are larger than set values or lower than the set values, controls the output current of the main power source.
Claims6
A power unit including a main power source and an auxiliary power source having an electric double layer capacitor, wherein the power unit supplies power to a load and the power supplied to the load is shared by the main power source and the auxiliary power source, the power unit comprising:
- an output detection section for detecting an output of the auxiliary power source;
- and
- a power control section adapted to control an output current of the main power source based on a detection output of the output detection section.
A power unit including a main power source and an auxiliary power source having an electric double layer capacitor, wherein the power unit supplies power to a load and the power supplied to the load is shared by the main power source and the auxiliary power source, the power unit comprising:
- a current detection section for detecting an output current of the auxiliary power source;
- a voltage detection section for detecting an output voltage of the auxiliary power source;
- a current detection processing unit adapted to compare the output of the current detection section with a predetermined current value and to output a control signal for decreasing or increasing the output current of the main power source according to a difference from the set value;
- a voltage detection processing unit adapted to compare the output of the voltage detection section with a predetermined voltage value and when the detected output voltage value is lower than the predetermined voltage value, and to output a control signal for increasing the output current of the main power source;
- a power control section having a switching section for switching between the output of the current detection processing unit and the output of the voltage detection processing unit;
- and
- an input section for supplying a switching signal to the switching section.
Dependencies are inferred from the claim text.