Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to DD18000174ApriorityCriticalpatent/DD117147A1/xx
Priority to DE19752527089prioritypatent/DE2527089A1/de
Priority to HU75ME00001877Aprioritypatent/HU171138B/hu
Publication of DD117147A1publicationCriticalpatent/DD117147A1/xx
H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
H03K17/945—Proximity switches
H03K17/95—Proximity switches using a magnetic detector
H03K17/952—Proximity switches using a magnetic detector using inductive coils
H03K17/9537—Proximity switches using a magnetic detector using inductive coils in a resonant circuit
H03K17/9542—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator
H03K17/9547—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator with variable amplitude