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    LM4950 audio amplifier clicking sound and signal distortion?

    Thanks. Actually, when I reduced the input voltage, the wave distortion and clicking sound are gone. The input voltage to the transformer was 6Vp and when I reduced it to 5Vp it worked ok. The output voltage with 1:10 ratio is 50Vp. One other thing that I noticed is that the waveform...
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    LM4950 audio amplifier clicking sound and signal distortion?

    The transformer is Prowave transformer K4000001. The link is http://www.prowave.com.tw/english/products/sr/transf.htm The schematic is as follows: Regards
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    LM4950 audio amplifier clicking sound and signal distortion?

    Hi, I am using LM4950 audio amplifier with DAC to amplify my audio signal. The output of the LM4950 is connected to the transformer and the output of the transformer is connected to ultrasonic transducer. The shutdown pin is continuously high, which means that the amplifier is continuously...
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    [Moved]: LTSpice simple transformer simulation problem

    Thanks for your answers. I have selected a transformer for my application and it is designed for 40kHz frequency. But I want to use it from 65kHz-70kHz. The input voltage is -3V-3V. So I think I'll be able to use it as my frequency is higher and the voltage is more or less the same. What do you...
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    [Moved]: LTSpice simple transformer simulation problem

    Thank you for the answer. I simulated again with 1000H inductance value and it is working fine. Actually, I have to amplify -3V to 3V analog signal from a 3W differential amplifier to +-12V signal for the ultrasonic transducer to increase the range. The frequency is 60kHz. In real life, we...
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    [Moved]: LTSpice simple transformer simulation problem

    Re: LTSpice simple transformer simulation problem Just to make things clear, I have attached another simulation. We know that: Voltage across primary * Current through primary = Voltage across secondary* Current through secondary. If you now consider secondary figure, we see that at 1V, 1mA...
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    [Moved]: LTSpice simple transformer simulation problem

    Re: LTSpice simple transformer simulation problem I have attached the primary and secondary side voltage and current waveforms. Thank you.
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    [Moved]: LTSpice simple transformer simulation problem

    Hi, I am trying to simulate a simple transformer in LTSpice and want to measure the current and voltage. I started with a simple cirucit to measure the current in the primary and secondary circuit as shown in the attached fig. When I simulated this, I found quite strange result. On the...

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