Aiming at the problems of using optocouplers to achieve logic level matching in current communication circuit, there are many components, high cost, and requirements for component parameters. Based on basic circuit matching, this paper combines The research principle triode switch, Schottky diode’s unidirectional conduction low voltage drop characteristics, introduces a inter-module with switch...

in this paper, the electrochemical behaviour of passive films formed on aisi 321 stainless steel (aisi 321)immersed in 0.1 m naoh + 0.1 m koh solution was evaluated by different electrochemical techniques. forthis purpose, passive films were formed at open circuit potential for 1 to 12 hours and then electrochemicalmeasurements were done. the polarization curves suggested that aisi 321 showed e...

recently, the role of myostatin (mstn) in controlling insulin resistance (ir( has been known. the aim of this study was to determine acute and delayed response of mstn and ir to circuit resistance exercise. for this purpose, 12 healthy men volunteered and participated in 2 sessions of the resistance exercise and control with one-week interval. after a session to instruct how to perform resistan...

Design and construction of a stable current supply with protection circuits are described. The reported circuit provides a high-stable and high-level current variable from 0.5-1.2 A with the protect ion circuits to prevent over load current, voltage and off-range temperature operation. A detailed analysis of the circuit parameters is given and the time behaviors of the load voltage/current and ...

In this article, an innovative supervision system will be proposed that can observe and analyze health of Circuit Breaker’s trip coil. The proposed design also logs changes in the coil's quality and informs network supervisor in case of Circuit Breaker (CB) failure. This system injects small direct currents to the Circuit Breaker connections and the trip coil to compute CB’s health and characte...