Ultra Low Noise, High Stability, High Precision Voltage Or Current Source

Abstract: Disclosed herein is a system and method to generate ultra low noise voltage and current, by using feedback of noise to nullify the original, inherent noise produced by the electronic hardware components. Referring to FIGS. 1(a) and 1(b), the system comprises: one or more Analog to Digital converters (ADCs) for high precision digital reading of DC and AC ripple values; a microcontroller to process the ADC output readings and generate a waveform; a digital to analog converter (DAC) to implement the subtraction generated from the microcontroller; a high voltage amplifier for amplifying the ripple-free subtracted waveform output generated from the DAC; a very low frequency (VLF) noise bandpass filter (BPF) to detect the noise and filter out the significant frequency components to obtain the low frequency noise as output; and power and reference section to provide necessary voltage levels and precision references for proper functioning of system. FIGS. 1(a) and 1(b)

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents