This work studies the effects of dynamic threshold design techniques on the speed and power of digital circuits. A new dynamic threshold transistor structure has been proposed to improve performances of digital circuits. The proposed switched-capacitor dynamic threshold PMOS (SC-DTPMOS) scheme employs a capacitor along with an NMOS switch in order to effectively reduce the threshold voltage of ...

optimal capacitor placement, considering power system loss reduction, voltage profile improvement, line reactive power decrease and power factor correction, is of particular importance in power system planning and control. the distribution system operator calculates the optimal place, number and capacity of capacitors based on two major purposes: active power loss reduction and return on invest...

The neutral-point clamped (NPC) inverter is widely used in energy conversion, but the unbalance of voltage (NPV) will lead to imprecise control and decline power quality. Conventional finite set model predictive (FCS-MPC) uses an extra NPV weighing factor balance NPV. But weighting should tune frequently match best value. To cope with this problem, paper proposes a virtual vector-based strategy...

The necessity of using several components in multilevel inverters jeopardizes the reliability their operation. Hence, aim this article is to propose a novel single-phase fault-tolerant topology based on switched-capacitor concept ensure robustness converter occurrence fault. proposed single-source steps up input voltage seven times with simple control strategy. Fault tolerance achieved by consi...

An alternative method for characterizing capacitor matching is presented. The basic idea of this method is to sense the mismatch among the capacitors by amplifying the error voltage using an iterative switched-capacitor scheme. Through simulation, this method has shown attractive property for sensing capacitor mismatches down to 1% and smaller.

Recently, the demand for switched-capacitor converters has increased due to use of a low voltage input source. This article aims improve some weak points these inverters, such as high number elements by presenting novel single-source step-up multi-level inverter topology. The proposed consists cell with self-balancing capability. converter uses DC source charge series capacitors stage increase ...

Single-loop current sensorless control allows for abolishing of the instantaneous measurement in system using only a single loop with voltage feedback to stabilise DC-bus voltage. This approach eliminates sensors circuit, benefiting from saving space on printed circuit board and minimising power dissipation circuitry. paper focuses single-loop applied bidirectional three-phase four-wire three-l...