RLE load. And plot input voltage waveform‚ output current waveform‚ output voltage waveform and voltage across the diode. Software Required: (a) Windows Xp or above (b) Matlab 7.0 or above (c) Simulink 2.0 or above Theory: This is the simplest type of uncontrolled rectifier. It is never used in industrial applications because of its poor performance. In a single-phase half-wave rectifier‚ for one cycle of supply voltage‚ there is one half-cycle of output‚ or load‚ voltage. As such‚ it is also called
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diode are curve between voltage across the diode and current through the diode. When external voltage is zero‚ circuit is open and the potential barrier does not allow the current to flow. Therefore‚ the circuit current is zero. When Ptype (Anode is connected to +ve terminal and n- type (cathode) is connected to –ve terminal of the supply voltage‚ is known as forward bias. The potential barrier is reduced when diode is in the forward biased condition. At some forward voltage‚ the potential barrier
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direction when the voltage is above a certain value known as the breakdown voltage‚ "zener knee voltage"‚ "zener voltage" or "avalanche point". The device was named after Clarence Zener‚ who discovered this electrical property. Many diodes described as "zener" diodes rely instead on avalanche breakdown as the mechanism. Both types are used. Common applications include providing a reference voltage for voltage regulators‚ or to protect other semiconductor devices from momentary voltage pulses. |Contents
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as a voltage-controlled voltage source. That is‚ its output voltage is a gain multiplied by its input voltage. The circuit symbol for the ideal op amp is given in Fig. 1.1(a). The input voltage is the difference voltage between the two input terminals. The output voltage is measured with respect to the circuit ground node. The model equation for the output voltage is vO = A (v+ − v− ) (1.1) where A is the voltage gain‚ v+ is the voltage at the non-inverting input‚ and v− is the voltage at the
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IG is practically zero. Source and Drain terminal should be joined together through a voltage source called VDS‚ drain to source voltage. In an N-channel JFET‚ source terminal is connected to the negative end of the drain to source supply voltage to send the lectron from source to drain and similarly for an P-channel JFET‚ source terminal is connected to the positive end of the drain to source supply voltage to send the holes from source to drain. Let us consider N-channel JFET and discuss its principle
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designed to convert alternating current from one voltage to another. It can be designed to “step up” or “step down” voltages and works on the magnetic induction principle. A transformer has no moving parts and is a completely static solid state device‚ which insures‚ under normal operating conditions‚ a long and trouble-free life. Construction of transformer is very simple‚ two or more coils of insulated wire wound on a laminated steel or iron core. When voltage is introduced to one coil‚ called the primary
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input voltage UD = 48 V and output ac voltage Vo = 50V. The reference polarity of waveforms is same as in Figure 5.1‚ and the following waveforms in Figure 5.5 to 5.6 are also identical. Figure 5.4(a) shows output voltage uAB of the square inverter and driven signals for switches Q1 and Q4. Voltage uAB is positive when switches Q1 and Q4 are simultaneously turned on‚ and vice versa‚ voltage uAB is negative when switches Q2 and Q3 are simultaneously turned on. Figure 5.4(b) shows output voltage uAB
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designed to convert alternating current from one voltage to another. It can be designed to “step up” or “step down” voltages and works on the magnetic induction principle. * A transformer has no moving parts and is a completely static solid state device‚ which insures‚ under normal operating conditions‚ a long and trouble-free life. It consists‚ in its simplest form‚ of two or more coils of insulated wire wound on a laminated steel core. * When voltage is introduced to one coil‚ called the primary
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output obtained after rectification is subsequently used for further stages. Current pulses with high peak amplitude are drawn from a rectified voltage source with sine wave input and capacitive filtering. The current drawn is discontinuous and of short duration irrespective of the load connected to the system. Since many applications demand a DC voltage source‚ a rectifier with a capacitive filter is necessary. However‚ this results in discontinuous and short duration current spikes. When this type
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’’ Circuit’’ Question: (1) How do the different types of circuit affect current (I) patterns? (2) How do the types of circuit affect the voltage (I) patterns? Introduction: Hypotheses: 1). A) I think that for the series circuit‚ the current from the battery will be equal to the current that passes throught all three resistors. B) I think that for the
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