Abstract: An insulation device for being assembled in a linear motor is primarily made through molding a sheet insulation material into an insulation module with the shape harmonized with the shape of an iron core of a linear motor. Thus, coil wildings can be indirectly wrapped around the iron core with the insulation module positioned intermediately and thereby a linear motor with perfect insulation treatment between the iron and coil windings is achieved.

Abstract: A demodulation method of a resolver output position signal comprises the steps of: inputting an excitation signal, using a push-pull amplifier circuit to increase fan-out; using a voltage regulator to adjust the amplitude of resolver signals to the same level, for improving resolution; modulating with a subtracter; amplifying the signal with an amplifier circuit for providing signal waveform readable by a resolver to digital converter or a controller.

Abstract: A logic device for the transformation of the output of the RDC into series A-B pulses according to the present invention comprises: a chip with its two minimal bits (LSB-LSB-1) simulating as the clock source of A-B pulses, a signal-processing pin (BUSY) which output a TTL pulse wave as a control signal resource while LSB shifts from a low level to a high level and contrariwise, and a logic processing circuit as well as a buffer to output the displacement and velocity of a rotor in the form of A-B serial pulses.

Abstract: A limit switch control device for an actuator is disposed at both ends of a linearly moveable mover and comprises at least: two limit switches, a circuit board, and a connecting rod assembly. The two limit switches are disposed on the circuit board, both ends of the connecting rod assembly define the effective travel length of the mover. One end of the connecting rod assembly is moved by the mover to control the other limit switch. By such arrangements, the limit switch is simplified, and with the arrangement of the connecting rod assembly, the number of the brake devices or the limit switches can be increased as desired. Further, the circuit board and the connecting rod assembly are modular designed.