CURRENT STABILIZING CIRCUIT HAVING MINIMAL LEAKAGE CURRENT EFFECTS

摘要

Apparatus for stabilizing the current flowing through a current utilization device is disclosed in accordance with the teachings of the present invention wherein a voltage divider network including a plurality of series connected transistor means is coupled to the current utilization device and a current regulating transistor means is connected to the voltage divider network. A summation of the leakage currents induced in each of the transistor means included in the divider network is supplied to the output electrode of the current regulating transistor by voltage limiting means such that the total current flowing in the output electrode circuit of the current regulating transistor means is substantially equal to the current flowing through the current utilization device. Stabilization of the current flowing in the output electrode circuit results in stabilization of the current flowing through the current utilization device without requiring regulation of the leakage current induced in each of the transistor means included in the voltage divider network. Discrete or continuous modulation of the stabilized current flowing through the current utilization device may be provided.