Recent content by syee10

  1. S

    How Can I Use an Analog Switch to Obtain Specific Waveforms in My Circuit?

    Hi..i have read through the datasheet of CD4016.. but i still dun understand it well @@ Based on my understanding, i need to perform a propagation delay time control to signal output which is in the Figure 1,2 or 3. Am i right?
  2. S

    Learn How to Connect 74LS90 Decade Counter for a 4-Digit 7 Segment Display

    Well I get it from an article and i am not fully understand the connection. It does not label in the connection and that is why i post it here to get further detail =D
  3. S

    How Can I Use an Analog Switch to Obtain Specific Waveforms in My Circuit?

    Yes i have it.. can you briefly explain to me how am i going to connect this Quad Bilateral Switch?
  4. S

    Learn How to Connect 74LS90 Decade Counter for a 4-Digit 7 Segment Display

    Is the circuit in the attached Figure working? I want to get an electrical energy (kWh) output so i need a decade counter in the circuit. The input is the output frequency from VFC LM131, and i am using 74ls90 and 74ls47 and 7 segment display.
  5. S

    How Can I Use an Analog Switch to Obtain Specific Waveforms in My Circuit?

    Hi all, I have a problem with an analog switch DG201 in my analog design circuit. The circuit has 2 input at the early stage, v(t) and i(t). v(t) will be changed into TTL square wave and go through a sample and hold circuit. And the i(t) will be go through the sample and hold circuit as well...
  6. S

    How can I design a sample and hold circuit to produce a desired waveform?

    I construct the circuit from the following reference.. http://mysite.du.edu/~etuttle/electron/elect25.htm Is the circuit itself connected wrongly?
  7. S

    How can I design a sample and hold circuit to produce a desired waveform?

    The gate is connected to a reference signal logic input. The analog input is connected to pin 5...
  8. S

    How can I design a sample and hold circuit to produce a desired waveform?

    Sample and Hold Circuit Help! Hi all, I am designing a simple sample and hold circuit where the input is a sinusoidal analog input and it is control by a TTL compatible square wave (waveform A). The result waveform i should get is waveform B in the attach file but i tried a millions time i...
  9. S

    Learn How to Connect 74LS90 Decade Counter for a 4-Digit 7 Segment Display

    Hi all, I am designing a four digit 7 segment display just using IC 74LS90 decade counter and 74LS47 BCD to 7 segment driver. My question is how to link the 74LS90 decade counter together so that the four 7 segment display will show me the result?
  10. S

    How Can I Maximize Output with LM331 Multiplier for Power Meter Design?

    The multiplier scale the output to 10V..means the output i suppose to get is 10 but it scale to 1. What i need is a multiplier that multiply a signal with another signal and i get the exact output of both inputs. My task is actually get the power of input Voltage and input Current by using a...
  11. S

    How Can I Maximize Output with LM331 Multiplier for Power Meter Design?

    Hi, I am designing a power meter which using the multiplier LM331 to multiply the Voltage and Current signal. The voltage and current signal will be go through the sample and hold circuit and the output of the sample and hold will be go into the LM331 multiplier. Power, P=VIcos(angle) and the...
  12. S

    AD633 multiplier connection error

    Hi, Currently i am using Proteus 7.4SP3 to simulate the AD633 multiplier. The two input is a trend of pulses and i want to get the output. The problem is that it occur 2 warnings which is then stopped my simulation. 1. [SPICE] DELMIN increased to 1.11022e-016 due to lack of time precision...
  13. S

    Dg201cj cmos quad spst analog switch

    Hi..anyone here can explain to me what is the function of this device DG201 CMOS QUAD SPST ANALOG SWITCH? I had search using google or yahoo search machine but still can't find any site explaining this device. So if you know what is it please tell me or paste the link for me here. I dun want the...
  14. S

    Create GUI using Visual Basic/any software and program into PIC18F2550 through USB

    I am sorry because i recreate this post because the old thread is missing =( I need to create a GUI using Visual basic to get input from user.A simple button click will be enough for the GUI.After i get the input, i need to load the input into PIC18F2550 through USB. This will then control my...
Back
Top