IPC Subgroup
H03K 17/78 by the use, as active elements, of opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
Introduced: September 1968
Last revised: January 2006
Full Title
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 opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- PULSE TECHNIQUE
3 direct subcodes
Child Classifications
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- H03K 17/785 controlling field-effect transistor switches
- H03K 17/79 controlling semiconductor switches with more than two PN-junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region
- H03K 17/795 controlling bipolar transistors