Monday , October 11 2021

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Single phase full wave controlled converter

Single phase full wave controlled converter

Single phase full wave controlled converter   The circuit arrangement of a single-phase full converter is shown in Figure 1(a) with a highly inductive load so that the load current is continuous and ripple-free.   During the positive half-cycle, thyristors T1 and T2 are forward biased; and when these two …

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Working principle of half wave controlled converter

working principle of half wave controlled converter

Working principle of half wave controlled converter   Let us consider the circuit in Figure (a) with a resistive load. During the positive half-cycle of input voltage, the thyristor anode is positive with respect to its cathode, and the thyristor is said to be forward-biased. When thyristor T1 is fired …

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What is latch up problem and how can it be eliminated

What is latch up problem and how can it be eliminated

What is latch up problem and how can it be eliminated   The latch is the generation of a low-impedance path in CMOS chips between the power supply and the ground rails due to the interaction of parasitic pnp and npn bipolar transistors. These BJTs for a silicon-controlled rectifier with …

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Limitation of cascaded dynamic logic and solution

Limitation of cascaded dynamic logic and solution

Limitation of cascaded dynamic logic and solution   In dynamic logic, a retardant arises when cascading one gate to subsequent. The precharge “1” state of the primary gate may cause the second gate(N2) to discharge prematurely before the primary gate(N1) has reached its correct state. But N1 uses up the …

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Domino logic and Zipper logic

Domino logic and Zipper logic

Domino logic and Zipper logic   Domino logic: In dynamic logic, a retardant arises when cascading one gate to subsequent. The precharge “1” state of the primary gate may cause the second gate to discharge prematurely before the primary gate has reached its correct state. This uses up the “precharge” of the second gate, which can’t be restored until …

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Explain body effects in MOS transistor?

Explain body effects in MOS transistor

Explain body effects in MOS transistor?   body effects in MOS transistor Normally, we considered a transistor to be a three-terminal device with gate, source, and drain. However, the body is an implicit fourth terminal. Body effects refer to the change in the transistor threshold voltage (vt) resulting from a …

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