Method for operating circuit e.g. low pressure circuit, involves controlling switching elements so that low-side switching element is activated and high-side switching element is not activated during pre-driver phase and/or control phase

摘要

The method involves connecting the load in a half-bridge arrangements in series between voltage source side high-side switching element and ground side low-side switching element. The load is energized by controlling high-side and low-side switching elements with pulse width modulated (PWM) signal. The low-side switching element is activated and the high-side switching element is not activated during the pre-driver phase (42) and/or during the control phase (44). The low-side switching element is not activated and high-side switching element is activated during the approach phase (43).