CPC Subgroup
H03K 17/722 with galvanic isolation between the control circuit and the output circuit (H03K17/78 takes precedence)
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) > by the use, as active elements, of semiconductor devices (using diodes H03K17/74) > having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region > with galvanic isolation between the control circuit and the output circuit (H03K17/78 takes precedence)
2 direct subcodes
Child Classifications
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- H03K 17/723 using transformer coupling