Trimming resistances in symmetrical polyphase networks

Details Trimming resistances in symmetrical polyphase networks Trimming resistances in symmetrical polyphase networks

1984-04-20

1987-03-03

Salce, Patrick R.

Electricity: power supply or regulation systems

Including an impedance

Thermistor or resistor

333172, H03H 102, H01P 122

Patent

active

046478434

ABSTRACT:
A symmertical polyphase network consists of a ring of series-connected alternate resistors and capacitors, with junction points therebetween alternately forming inputs and outputs of the network. For example there are four resistors and four capacitors. The resistors are trimmed so that the product of the resistance and the capacitance of the components connected to each respective output is equal to a product RC, R and C being the nominal resistance and capacitance of the resistors and capacitors.

REFERENCES:
patent: 4123712 (1978-10-01), Mikhael
patent: 4181903 (1980-01-01), Holland et al.
patent: 4302737 (1981-11-01), Kausche et al.
Mikhael, W., "Sequence Discriminators and Their Use in Frequency Division Multiplex-Communication Systems", IEEE Trans. on Circuits & Systems, v. CAS-26, No. 2, Feb. '79, pp. 117-129.

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