This paper presents a linear bridge circuit based on PI regulator.

A feedback technigue is used so that the actuating voltage of a bridge circuitcan be adjusted automatically and the nonlinear relationship of the bridge output tothe resistance change of the sensor can be corrected.

This paper determines error-minimized method as bridge circuit resistance measurement method by detailed analysis on common resistance measurement such as internal,external methods and the bridge circuit.

Through the analysis of the shape of the bridge circuit component KBU and the characteristics and difficulties of the encapsulating process,the structure of the mould for encapsuˉlating KBU is introduced.

Using a bridge circuit to detect the horizontal displacement, describing the curve of the height horizontal displacement in the welding torch moving by micro computer, mirrorring the live circumstances of operator.

In this paper,the traditional H-bridge circuit of EPS System was introduced and analyzed.

In this paper,traditional H-bridge circuit for Electric Power Steering System was introduced and analysed.

Half-bridge circuits are widely used in ballasts、PWM motor drivers and DC-AC converters.

A novel topology of half-bridge circuit,which is used as the secondary inverter of a variable polarity welding power supply,is proposed,and it is composed of a coupling inductor,a half-bridge circuit realized by two IGBTs and their RC snubber circuits.