My questions is "How much voltage can an Arduino amplify with additional amplifier circuit?"
Could we generate very high voltage (e.g. 1000 V) using analog or digital output from an Arduino?
If I add amplifier circuit to an analog output of Arduino to generate 1000 volts, is the max power 40 Watt (30 mA * 1000 V)? *current limit of Arduino is 40 mA/pin