IPC Subgroup
H03K 17/73 for DC voltages or currents
Introduced: January 1980
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 semiconductor devices > Bipolar semiconductor devices with more than two PN junctions, e.g. thyristors, programmable unijunction transistors, or with more than three electrodes, e.g. silicon controlled switches, or with more than one electrode connected to the same conductivity region, e.g. unijunction transistors > for DC voltages or currents
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- PULSE TECHNIQUE
1 direct subcode
Child Classifications
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- H03K 17/732 Measures for enabling turn-off