Patent ID: 6856185

Claim:
A simple RMS to DC converter, for providing a scaled DC output proportional to the RMS value of an input signal waveform, comprising: a means for rectifying the input signal waveform, the rectifying means having first and second output nodes; a first resistive element having a first node connected to the second output node; a second resistive element having a first node connected to a second node of the first resistive element and a second node connected to the first output node of the rectifying means, the first and second resistive elements being connected in series to form a voltage divider across the output nodes of the rectifying means, the resistance of the first resistive element being related to the resistance of the second resistive element by the ratio of about 2.137255; and a capacitive element connected in parallel with the first resistive element, the scaled DC output being developed across the capacitive element.