designs may be equally effective and would be readily understood by one having ordinary skill in the design of digital circuits and the benefit of this disclosure referring to fig3 depicted is a schematic diagram of a power application controlled by a digital device according to another specific example embodiment of this disclosure the power application may be for example but not limited to a power supply a fluorescent lamp driver full brightness and dimming brightness control brushless direct current motor speed and direction control etc when high voltage power is applied at power nodes 122 vdc and 128 u2212 vdc voltage across capacitor 126 rises according to the time constant of resistor 124 and capacitor 126 until reaching the breakdown voltage e g 15 vdc of the zener diode 120 the dc voltage from the resistor 124 that charges the capacitor 126 is used as a low current bias voltage vbias and is applied to a low dropout ldo voltage regulator 118 and through diode 336 to a transistor driver 114 e g field effect transistor fet the ldo voltage regulator 118 supplies an appropriate voltage to the digital device 116 during both start up stabilization thereof and normal operation as more fully described hereinbelow voltages provided from the resistor 124 and through the diode 336 have just enough current sourcing capacity to startup the digital device and supply enough voltage to the transistor driver so as to start the power fet 112 switching on and off to generate inductively induced voltages.