作者: Brian C. Martin
DOI:
关键词: Shunt (electrical) 、 Control theory 、 Microelectronics 、 Topology 、 Resistor 、 Low-pass filter 、 First line 、 Closed position 、 Ladder network 、 Engineering 、 Variable resistance
摘要: A resistor tuning network for an RC filter has a first, fixed and second, variable resistance connected in parallel with the resistor. The is R-2R ladder circuit having input first second output terminals, line plurality of arms series terminal nodes between each pair arms, arm identical R. shunt are selectively respective or terminal. Each 2R switch series, closed position connecting to open terminal, such that varied dependent on positions at maximum value when all switches minimum open. overall tuned by varying circuit.