• All sections
• H - Electricity
• H03B - Generation of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner; generation of noise by such circuits
• H03B 5/28 - 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 the frequency-determining element being connected via a bridge circuit to such a closed loop, e.g. Wien-Bridge oscillator, parallel-T oscillator active element in amplifier being vacuum tube

Patent holdings for IPC class H03B 5/28

Total number of patents in this class: 1

10-year publication summary

Principal owners for this class