The need for true-RMS meters has grown as the possibility of non-sinusoidal waves in circuits has greatly increased in recent years. Some examples include variable speed motor drives, electronic ballasts, computers, HVAC, and solid-state environments.
A diode is a semiconductor device that essentially acts as a one-way switch for current.
Ohm’s Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit.
Duty cycle is the ratio of time a load or circuit is ON compared to the time the load or circuit is OFF.