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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.
Torque-Speed Characteristics of 3-Phase Induction Motors Because the torque-slip characteristic is one of themost important aspects of the inductionmotor, we will now develop a
What is use of co-processor in a typical microprocessor based system. This is a processor that works in parallel with the major processor. This has its own set of specialized i
Structure and use of PNP transistor: The figure opposite is a schematic presentation of a PNP transistor related to two voltage sources. To construct the transistor conduct ap
Q. The current sources in Figure are given to be I A = 30 A and I B = 50 A. For the values of R 1 = 20 ,R2 = 40 , and R3 = 80 , find: (a) The voltage V. (b) The current
i v characteristics of practical current source
A battery having of 5 cells with emf and internal resistance of every cell is 1.5V and 0.25Ω connected in series. If the current flow by load resistance is 1.5A, calculate the valu
Q. Write a short note on types of enclosure of machine. Sol. The various types of d.c. machine : (1) Magnetic frame or Yoke (2)
Zero Flag Since results is non zero in this example zero flag is reset.
The pre-processing unit is responsible for taking the conditioned output from the heart sensor and generating a binary count during time T1 of this waveform (datain). It will compr
The Octal Inverter 74LS 240 It is similar to above octal buffer but with inverter output. The logic diagram is shown in figure below . Normal 0
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