نتایج جستجو برای: power semiconductor switch
تعداد نتایج: 592484 فیلتر نتایج به سال:
A nine-switch power converter having two sets of out-put terminals was recently proposed in place of the traditional back-to-back power converter that uses 12 switches in total. The nine-switch converter has already been proven to have certain advantages, in addition to its component saving topological feature. Despite these advantages, the nine-switch converter has so far found limited applica...
Aiming further to reduce its switching losses, an appropriate discontinuous modulation scheme is proposed and studied here in detail to doubly ensure that maxi-mal reduction of commutations is achieved. With an appropriately designed control scheme had incorporated with nine-switch converter is shown to favorably raise the overall power quality and voltage mitigation hence justifying its role a...
This paper proposes a nine level cascaded multilevel inverter based on the flip flops and logic gates. Generally multilevel inverter is used to achieve the high power by using a series of power semiconductor switches with the several dc voltage sources which is used to perform the power conversion. In this paper the flip flop based CMLI is compared with the conventional CMLI. The flip flops and...
LUDWIG, R., P I E P ~ , w., and WEBER, H. G.: ‘Photonic ATM switching with semiconductor laser amplifier gates’, Electron. Lett., 1992, 28, (15), pp. 1438-1439 SAXTOFT, c.: ‘Photonic packet switch experiment employing a 2 t 2 switch matrix and a semiconductor laser amplifier’. Proc. Photonic Switching Topical Meeting, Kobe, Japan, 1990, Postdeadline Paper 14B-7 4 FORTENBERRV, R. M., LOWERY, A. ...
Reliable current changes with selectivity ratio above 109 observed in lightly doped zinc oxide films
Low-power operation of semiconductor devices is crucial for energy conservation. In particular, energy-efficient devices are essential in portable electronic devices to allow for extended use with a limited power supply. However, unnecessary currents always exist in semiconductor devices, even when the device is in its off state. To solve this problem, it is necessary to use switch devices that...
In this paper, two single phase ac loads are supplied with one inverter and reduced switch count topologies are introduced in this paper. It has three switch single leg structures. This single leg inverter is functionally comparable to half bridge inverter working independently though with a less number of semiconductor switch and hence control and gate drive circuit components. This three swit...
-A non-revivable Privacy Protection Circuit is proposed and designed in a low frequency passive Radio Frequency Identification (RFID) transponder. The main component of the non-revivable Privacy Protection Circuit is a poly fuse. The fuse acts as a switch and will be burn out when the function of transponder must be disabled. The broken fuse can not be repaired and prohibit the power required f...
Switching devices are key components in any power electronic circuit or system as they control and limit the flow of power from the source to the load. Their power level requirements (current & voltage) and switching frequency are continually increasing in the power electronic industry, and this demands larger and faster switching devices. This paper will focus on the development of high power ...
Volume 2, Issue 5, May 2014 Page 16 Abstract The switch mode power supply(SMPS) has been achieved the high power density and high performance by developing the power semiconductor devices such as IGBT, BJT, MOSFET, and GTO etc. SMPS has the capacity to handle the variable loads and variable input voltage. The efficiency, weight and size of power supplies are a great area of concern for the powe...
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