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What do you understand by DRAM and its refreshing?
Dynamic RAM (DRAM) is fundamentally the same as SRAM, but this retains data for only 2 or 4 ms on an internal capacitor. But after 2 or 4 ms, the contents of the DRAM should be fully rewritten (refreshed) since the capacitors that is store logic 1 or logic 0, lose their charges. The whole content of the memory is refreshed with 256 reads in a 2-to-4 ms interval. Also refreshing occurs throughout a write, a read or a particular refresh cycle.
Q. Sketch the depletion MOSFET drain characteristics The depletion-type MOSFET has a structure similar to that of the enhancement-type MOSFET with one important difference: The
Q. Find idealized expressions for the active and ohmic states and sketch the universal characteristics of an n-channel enhancement MOSFET operated below breakdown.
Q. What are the uses of MOSFET? The most common use of MOSFET transistors today is the CMOS (complementary metallic oxide semiconductor) integrated circuit which is the basis f
We have seen that a practical power source may be modelled by an ideal constant voltage source in series with a resistor - a Thevenin equivalent circuit Alternati
a) State the principle of working of transformer. b) A 230/110 V, single-phase transformer takes an input of 350 volt-amperes at no load while working at rated voltage. The core
Conductors for Lines The sizing of conductor must depend upon the load it is expected to serve and other factors, such as capacity required in future. Or else conductors/cable
Q. Forces and torques in magnetic-field systems? We mentioned earlier that the greater ease of storing energy in magnetic fields largely accounts for the common use of electrom
What is XMS? XMS: The memory system is splits in three major parts as: system area, XMS (extended memory system) and TPA (transient program area). The kind of microprocessor in
Depletion Zone in P-N Junction The power of the depletion zone electric field gets increases as the reverse-bias voltage increases. One time the electric field intensity incre
Q. Show Process of Speed Control of DC Motors? Equation showed that the speed of a dc motor can be varied by control of the field flux, the armature resistance, and the armatur
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