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Hi ,
I want to get more output power from a CCFL transformer. All i can get is less then 1 watt no matter how i dirve it . I want to charge a 47UF capacitor to 400 volts in 5 seconds.
Primary inductance is 280uH , seondary is 7H . Leakage inductance is 280mH.
I my opinion all these CCFL...
I am trying to run the code given by creasol link
on the page:
https://www.edaboard.com/showthread.php?9945-HT1621-display-driver
Rest of the code is working and LCD is functioning but this assebmly function doesnot compile.
Hi,
i trying to drive a holtek 1621 based lcd.
Can some one help change this code to c for PIC16f877A or assembly .
void ht1621_setNum(uchar value, uchar num) {
// Write on LCD the digit VALUE at position NUM
// VALUE should be a digit [0-9] or a bitmask (corresponding to A,b,C,c,...)
if...
Ok, I just looked at this link
**broken link removed**
and now i am between relief and further confusion!
These are exactly the wave forms that i see on my board.
Thamid, you will note that ground is the measurement point and it is also the reference.
The spikes exist exactly on the ground...
I am making a switch mode power supply 24vdc to 12vdc using
push pull topology . Transformer is center tap at both sides ground
is not isolated . Rectification is via MUR3020. Switching frequency
100khz using SG3525.
I have spikes of about 100~ 200mv on my ground line as shown
in picture...
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