This 1969 circuit generates a high voltage that reaches 100 V from 16 V. The power is of the order of 280 mW. The number of diodes determines the voltage multiplication.
Found in a Philips documentation from the 90s, this circuit uses transistors from that time....
This circuit is an application for an operational amplifier with field effect transistors from...
We found this circuit in a 1977 National Semiconductor Databook. The circuit can use other FETs...