SOLID STATE FREQUENCY CONVERTOR FOR

Brand	Owner	Address	Description
INDUCTOTHERM	Inductotherm Corporation	Rancocas NJ	SOLID STATE FREQUENCY CONVERTOR FOR INDUCTION MELTING AND HEATING FURNACES, AND FREQUENCY TRIPLER USED WITH INDUCTION MELTING [ AND ] FURNACES, AND ELECTRIC POWER SUPPLIES AND REGULATORS FOR INDUCTION MELTING AND HEATING FURNACES;IN THE STATEMENT, COLUMN 1, LINE 12, AND SHOULD BE DELETED.;MACHINES FOR POURING MOLTEN METAL;INDUCTION MELTING FURNACES;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A start signal outputting circuit according to the invention has a differential RF/DC convertor part 100 for converting a high frequency power (RF) into a d.c. potential (DC). The RF/DC convertor part 100 is formed by two transistors QRD, QDD working as a diode, and transistors QR1~R3, QD1~D3 and resistances RR1~R3 for forming high resistances at anode sides and cathode sides of these diodes, respectively. A differential amplification part 200 disposed at a later stage of the diode has not only amplifying effect but also low-pass filtering effect together with filtering pars 120, 210 of its previous and later stages. In this case, it is designed so that current flowing through the respective circuits is about 2~3 ?A. As a result, even if the high frequency power of the specified frequency is weak, for example ?60~?40 dBm, a start signal outputting circuit 1000 which outputs a d.c. potential of 0.3~2.4V, is suitable for integration and has a low power consumption can be obtained.