with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Generation of oscillations using amplifier with regenerative feedback from output to input > with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator

CPC:

Generation of oscillations using amplifier with regenerative feedback from output to input (H03B9/00, H03B15/00 take precedence) > with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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H03B 5/22 active element in amplifier being vacuum tube (H03B5/26 takes precedence) IPC+CPC Available in IPC and CPC
H03B 5/24 active element in amplifier being semiconductor device (H03B5/26 takes precedence) IPC+CPC Available in IPC and CPC
H03B 5/26 frequency-determining element being part of bridge circuit in closed ring around which signal is transmitted; frequency-determining element being connected via a bridge circuit to such a closed ring, e.g. Wien-Bridge oscillator, parallel-T oscillator IPC+CPC Available in IPC and CPC