This paper presents a proposal for new type of regulator switched reluctance motor (SRM) drives. The proposed enables significant extension the rotational speed range and drive output power. is characterized by complex structure, including two regulation modules: voltage phase supply switch-on angle. module includes proportional integral derivative (PID) regulator. During its operation, value a...

This paper will review the typical gate drive requirements for the latest generation of high power IGBT modules and present simplified implementations of the required circuits using newly developed hybrid integrated circuit (HIC) building blocks. A newly developed circuit that provides short circuit protection without desaturation detection will also be presented.

A GaN gate injection transistor (GIT) has great potential as a power semiconductor device. However, GIT diode characteristic at the gate-source, and corresponding drive circuit is thus required. Several studies in literature have proposed circuits with speed-up capacitors, but adding these capacitors complicates circuit, increases both reverse conduction losses. Moreover, driving such becomes m...

Wheeled Mobile Robots (WMRs) are built with their Wheels’ drive machine, Motors. Depend on their desire design of WMR, Technicians made used of DC Motors for motion control. In this paper, the author would like to analyze how to choose DC motor to be balance with their applications of especially for WMR. Specification of DC Motor that can be used with desire WMR is to be determined by using MAT...

Biochemical reactors (BCRs) based on the stimulation of sulphate-reducing microorganisms (SRM) are emerging semi-passive remediation technologies for treatment of mine-influenced water. Their successful removal of metals and sulphate has been proven at the pilot-scale, but little is known about the types of SRM that grow in these systems and whether they are diverse or restricted to particular ...

Bit-serial architectures require less area but more sophisticated clocking mechanisms than their parallel counterparts. This paper presents a CMOS circuit that generates high-frequency clock waveforms for bitserial hardware. Triggered by a master clock input, the circuit outputs a fixed number of pulses followed by a completion signal. The design uses two coupled ring oscillators to produce dif...