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CPC Subgroup
H03K 17/78

using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled

Full Title

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) > using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled

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