Axial Flux Ironless permanent magnetic synchronous motor (AFIPMSM) is a new permanent magnetic motor. It has many advantages, such as high torque-to-weight ratio, good efficiency, no cogging torque, and the sinusoidal back EMF. It gradually becomes the good choice in drive system. However, the small armature winding inductance causes the current is not continued with the PWM control based on VS...

--------------------------------------------------------------ABSTRACT------------------------------------------------------This paper deals with modelling and simulation of high step up DC – AC converter with micro source at the input. The 15V DC is stepped up to 230V DC using high step up DC-DC Converter. This DC is converted into AC using a single phase inverter. The DC-AC converter system i...

In this work, a zero static error proportional controller for a two-cell DC-DC buck converter is synthesized and analyzed. Under a traditional proportional control scheme, the system presents a constant error of the current supplying the output load. As the proportional feedback gain is increased, the average static error decreases. However, sub-harmonic oscillations and chaotic behavior emerge...

This paper presents efficiency analysis of the power buffering in common voltage bus systems. Operation of the power buffering is briefly described with the power control experiments. The efficiency measurement setup and performed measurements from the charging and discharging events of the ultracapacitor module with the dc-dc converter are presented. As a result, the efficiency map of the dc-d...

In this paper, an 8b/10b encoding serializer/deserializer (SerDes) circuit using a DC-balanced, partitioned block, 8b/10b transmission code was presented. The information format of this transmission code consists of packets which are variable in length and can be suitable for high speed applications. Serializer and deserializer blocks were designed separately. The serializer circuit gets the 8-...

In this paper, a novel switched-capacitor DC-DC converter with pulse density and width modulation (PDWM) is proposed with reduced output ripple at variable output voltages. While performing pulse density modulation (PDM), the proposed PDWM modulates the pulse width at the same time to reduce the output ripple with high power efficiency. The prototype chip was implemented using 65 nm CMOS proces...

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract The interconnection of small modular devices such as photovoltaic, small wind turbines and storage devices ,commonly storage batteries to a Low Voltage distribution system leads to a new energy system known as the Microgrid. This paper presents the...

Conventional voltage mode control only offers limited performance for LLC series resonant DC-to-DC converters experiencing wide variations in operational conditions. When the existing voltage mode control is employed, the closed-loop performance of the converter is directly affected by unavoidable changes in power stage dynamics. Thus, a specific control design optimized at one particular opera...

A non-isolated high voltage gain DC-DC converter has been presented in this paper. The boost, SEPIC and modified SEPIC converters were nalyzed and their performance was compared with the proposed converter. The proposed converter has been designed for the input voltage of 5 V and an output voltage of 150 V with 100 W output power. The efficiency of the converter obtained was 92.5%, which is hig...

Abs t rac t -Piezoelectric transformers (PZT) can be used advantageously in high output voltage DC-DC converters . In such applications the output section includes a vol tage doubling rectification scheme to help increase the output voltage. This topology was modeled and analyzed by considering the expected voltage and current waveforms under the first harmonics approximation. The results were ...