+30V power supply with +5V
I made the power
supply which makes about +30V with +5V power supply.
The direct current is changed into the alternating current by
the oscillator which used the schmitt trigger inverter which has the
hysteresis characteristic and the resonance circuit. The high DC voltage
(+50V) is made with the alternating voltage using the voltage amplification
The output voltage of this circuit changes mainly when the
load changes. So, this power supply can be used only as the power supply of
the circuit that the load is constant or the circuit which doesn't have a
problem even if the voltage changes.