Charging apparatus for capacitor storage type power source and discharging apparatus for capacitor storage type power source

A charging apparatus (106) for electrically charging a capacitor storage type power source (107) adapted to store electric energy in electric double layer capacitors comprises a switching circuit for turning on/off the charge current supplied from a charge power source to the capacitor storage type power source, the capacitor storage type power source having a plurality of electric double layer capacitors connected in series and parallel monitors for bypassing the respective charge currents of the capacitors, a constant current control circuit selecting a smaller reference value from a plurality of reference values provided as the current reference value according to the bypassing operations of the parallel monitors.A charging apparatus for electrically charging a capacitor storage type power source comprises a switching circuit for turning on/off the charge current, a current detection circuit for detecting the charge current, a voltage detection circuit for detecting the voltage of power source, a constant current control circuit for outputting an error amplifying signal according to the current value, a power control circuit for outputting an error amplifying signal according to the current value, the voltage value-and a power reference value, a constant voltage control circuit for outputting an error amplifying signal according to the voltage value and a voltage reference value, an OR circuit for selecting one of the error amplifying signals and a control circuit for generating a pulse width modulation signal according to the error amplifying signal output from the OR circuit to turn on/off the switching circuit and control the charge current.