{215} How to Measure Frequency and Duty Cycle with Multimeter, What is duty cycle in PWM 

How to Measure Frequency and Duty Cycle with Multimeter, What is duty cycle in PWM
In this video i demonstrated How to Measure Frequency and Duty Cycle with Multimeter. i used Uni-T UT202A+ clamp meter and Aneng Q1 multimeter and used Digital Storage Oscilloscope DSO.
we can use Hz% button and connect test probe to test point and multimeter common to ground. it will display frequency then we can press sub menu button to display duty cycle. it will display duty cycle in percent.
Duty Cycle is the ratio of time ON compared to the time OFF or circuit is OFF. To measure duty cycle on the simply press the "HZ %" button again.
How to Measure Frequency & duty cycle with multimeter, in troubleshoot or repairing switch mode power supply we need to test smps switching / pwm signal (pulse-width modulation). frequency measurements with a multimeter makes some easy in troubleshooting process, so we can check duty cycle and frequency
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