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apchi40

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555 based PWM circuit, it uses a opamp to make 0-100% duty cycle. To change the frequency make C1 as follows C1=4n7 20kHz C1=10n 10kHz

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apchi

119 Circuits

Date Created

2 years ago

Last Modified

2 years ago

Tags

  • 555 pwm
  • 555 variable duty cycle astable multivibrator
  • pwm led

Circuit Copied From

555 PWM 0-100% duty cycle

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