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  1. RachelAnne

    What should I do? (power insufficient inverter to transformer)

    I use TL494+IRF740 as the inverter to connect the transformer. The tube is very hot as soon as it is turned on. I add 20K to the G pole to adjust the current. The tube is not hot, but there is no power. What should I do now?
  2. RachelAnne

    Utmel Electronic--your professional distributor

    Utmel is the professional distributor of electronic components, which provides you a large variety of products to save your time, effort and cost with efficient self-customized service, careful order preparation, and fast delivery service. If you are finding popular parts like NE556, CA3140...
  3. RachelAnne

    How many watts can do?

    How many watts can the maximum continuous power be achieved when IRF740 is used as the inverter's rear-stage 220V output? Can it last for 600W? This is a 12V to 220V inverter! No problem at the front stage, I just replaced it with four IRF740 tubes and repaired it! I want to bring a 580W little...
  4. RachelAnne

    Who can help me see what is going on with the output of this AD623?

    The pressure bridge on my left is a pressure sensor with four pins (1: NC. 2: Vsupply. 3: OUTPUT+. 4: GND). Pin 1 is floating, pin 2 is connected to 5V voltage, and pin 3 is connected to AD623 3 Pin (+In), pin 4 is grounded. Pin 2 (-In) and pin 4 (-Vs) of my AD623 are grounded, pin 7 (+Vs) is...
  5. RachelAnne

    Bandpass filter OP07CP help!

    The band-pass filter filter (0.05HZ~100HZ) made with OP07CP as the op amp, got a strange waveform as shown in the figure. What is the reason for this?

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