with galvanic isolation between the control circuit and the output circuit (H03K17/78 takes precedence)

Introduced: January 1990

Title

Titles differ between systems:

IPC: with galvanic isolation between the control circuit and the output circuit

CPC: with galvanic isolation between the control circuit and the output circuit (H03K17/78 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Electronic switching or gating, i.e. not by contact-making and -breaking > characterised by the use of specified components > by the use, as active elements, of semiconductor devices > the devices being field-effect transistors > with galvanic isolation between the control circuit and the output circuit

CPC:

Electronic switching or gating, i.e. not by contact-making and –breaking (gated amplifiers H03F3/72; switching arrangements for exchange systems using static devices H04Q3/52) > characterised by the components used (H03K17/04 - H03K17/30, H03K17/94 take precedence) > by the use, as active elements, of semiconductor devices (using diodes H03K17/74) > the devices being field-effect transistors > with galvanic isolation between the control circuit and the output circuit (H03K17/78 takes precedence)

Of 2 combined children, 1 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 1990.

Child Classifications

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H03K 17/6895 CPC only CPC only
H03K 17/691 using transformer coupling since 1990 IPC+CPC Available in IPC and CPC