The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 1981
Filed:
Jun. 11, 1979
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
Solid state relay with a full-wave rectifier bridge having d-c output terminals, a thyristor, the anode and cathode of which being respectively connected to the output terminals of the rectifier bridge, a first and a second transistor, the load circuits of which being shunted across the gate-cathode path of the thyristor, the control terminal of the first transistor being connected to a first and a second resistor, the first resistor being, in turn, connected to the anode of the thyristor, and the second resistor being, in turn, connected to the cathode of the thyristor, the control terminal of the second transistor being connected to a third resistor and to a control transistor, the third resistor being, in turn, connected to the anode of the thyristor, and the control transistor being connected to the cathode of the thyristor, including a Zener diode connected in series with the first resistor.