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PCE
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DIFF Subgroup
H03C 1/08

by means of variable impedance element (H03C1/28 - H03C1/34, H03C1/46 - H03C1/52, H03C1/62 take precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: by means of variable impedance element

CPC: by means of variable impedance element (H03C1/28 - H03C1/34, H03C1/46 - H03C1/52, H03C1/62 take precedence)

Full Title

Full titles differ between systems:

IPC:

Amplitude modulation > by means of variable impedance element

CPC:

Amplitude modulation (H03C5/00, H03C7/00 take precedence) > by means of variable impedance element (H03C1/28 - H03C1/34, H03C1/46 - H03C1/52, H03C1/62 take precedence)

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

Child Classifications

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  • H03C 1/10 the element being a current-dependent inductor IPC+CPC Available in IPC and CPC
  • H03C 1/12 the element being a voltage-dependent capacitor IPC+CPC Available in IPC and CPC
  • H03C 1/14 the element being a diode IPC+CPC Available in IPC and CPC