CIRCUIT CONFIGURATION SUPPLYING ENERGIZING CURRENT

摘要

PURPOSE: A circuit configuration supplying an energizing current is provided to prevent an information search of a process generated in an electronic circuit by measuring a supply current or a supply voltage. CONSTITUTION: A current source unit(5) transmits the first and the second stationary current. The first reference voltage source(12) generates the first reference voltage and the second reference voltage higher than the first reference voltage. A comparison unit(9) compares a supply voltage formed in an electronic circuit(1) and an energy storing element(8) with the first and the second reference voltage, and converts the current source into the first stationary current in case the supply voltage is over the second reference voltage, into the second stationary current in case the supply voltage is under the first reference voltage.