نتایج جستجو برای: i turn off thelights by zoya pirzad
تعداد نتایج: 7670338 فیلتر نتایج به سال:
In this paper, a new step-upresonant DC-DC converter without an auxiliary switch is introduced. All the switching elements act under zero current switching condition at turn-on and turn-off instants. The proposed converter has a simple auxiliary circuit including an inductor and a capacitor. In addition, the size of the main inductor is considerably reduced because it acts as a resonant inducto...
We describe a coupled experimental-numerical study of the effect of proton irradiation on the inductive turn-off of fastrecovery p-i-n diodes for snubberless applications. The goal is to avoid the large overvoltages and spurious oscillations that may arise at switch-off and jeopardize the diode’s reliability. We evaluated different proton irradiation profiles in order to extract indications on ...
This paper proposes a 300 mA low-dropout (LDO) regulator using an I Q of only 0.94 μA, which has the advantage minimizing power consumption in standby mode battery-based system. The LDO uses source follower buffer with dynamic biasing to maintain loop stability and load transient response perfor...
This article proposes a strategy to safely turn-off an electric drive system in case of fault without destroying the power module and machine. Classic strategies, such as active short circuit (ASC) freewheeling (FW), are adopted state art for vehicle applications. However, these methods cause either high currents machine or overvoltage dc-link capacitor, should be designed withstand unwanted ef...
The present study was conducted in order to investigate the effect of salicylic acid on growth, yield and macro-elements absorption of fennel in split-plot as base on randomized complete block design (RCBD) with three replications in Tehran, Iran. Irrigation regime as main plot was undergone in 5 levels that included: I1: full irrigation, I2: cut off irrigation at stem elo...
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