Patent ID: 6600327
Filing Date: 2003-07-29
Classification: H03K

Abstract:
A method of measuring current in a switching circuit (2) having a first set of terminals connected to a set of terminals (5,6) of a noise reducing circuit (1), wherein a second set of terminals (7,8) of the switching circuit (2) has a switching terminal (17), which is adapted to be switched between the set of terminals (5,6) of the noise reducing circuit, comprising the steps of providing an impedance in parallel with the switching circuit; measuring a current as a transient measurement during switching sequences in the switching circuit, the measurement being performed across said impedance in the noise reducing circuit,wherein a voltage supply is applied to an input port (3,4) of the noise reducing circuit, and said inductance (11) in series with a load circuit (10) is inserted between the said second set of terminals (7,8) of the switching circuit having the switching terminal (17).