The converter comprises a low voltage circuit (132) connectable to the low voltage terminals (26), a high voltage circuit (134) connectable to the high voltage terminals (28); and at least one capacitor (Cr) common to the low and high voltage circuits.

The low-voltage circuit includes a control unit for controlling an operation of the high-voltage circuit.

The invention relates to a low-voltage power switch with a relative auxiliary switch which is actuated as a signalling switch only when the generally multi-pole low-voltage power switch is triggered.

As an electric power supply circuit, a transformer (L) is provided to connect the low voltage circuit region (7) with each high voltage circuit area (5).

A low voltage circuit region (7) is provided with the electric power source control circuit (27).

Specifically, a displacement current (surge current) flows between a high voltage circuit and a low voltage circuit, caused by potential difference generated in the high voltage circuit.

The high voltage circuit region is arranged to provide a predetermined insulation distance d1 from the low voltage circuit region (7).

The decoder architecture utilized allows multiplexing of two channels and eliminates the need for high voltage and low voltage circuitry for each column driver output.

Furthermore, the electric motor control unit (12) is provided with a low-voltage circuit unit (166) and a high-voltage circuit unit (162).

The high voltage circuit region is inserted between, and is arranged in parallel with, both sides of the low voltage circuit region (7).

The transistor may be used to advantage in high-voltage ICs comprising a low-voltage circuit part operated with a low supply voltage generated by the transistor.

First, second, and third low-voltage regions are allocated in series along the component arrangement direction in the low-voltage circuit region.

The level shifter is advantageously employed in a low voltage circuit wherein lacking sufficient voltage head room to accommodate a constant common mode level shift.

The high-voltage circuit unit (162) is disposed on the vehicle cabin (150) side in the anterior-posterior direction with respect to the low-voltage circuit unit (166).

An electrostatic spraying device comprises a high voltage generating circuit powered by a low voltage circuit comprising one or more radiation sensitive elements and charge storage means.