| Stahl Schaltgerate GmbH Patent applications |
| Patent application number | Title | Published |
|---|
| 20100295526 | POWER SUPPLY ARRANGEMENT WITH OUTPUT FLOW MONITORING - According to the invention, a blocking oscillator type converter circuit functions with a transformator that only comprises a primary winding and a secondary winding. Said transformator does not comprise a return coupling winding for the blocking oscillator. The control voltage of the oscillator is derived from the primary voltage of the transformator during the free-wheeling phase. The invention also relates to a voltage monitoring circuit that works independently from the oscillator, the output voltage of the oscillator being repressed when the voltage on the output of the blocking oscillator is too high. A flow monitoring circuit functions independently from the oscillator and the voltage monitoring circuit and suppresses the impulses for the power transistor when the power on the output side exceeds a predetermined measurement. | 11-25-2010 |
| 20100295525 | POWER SUPPLY ARRANGEMENT WITH SECONDARY VOLTAGE MONITORING - According to the invention, a blocking oscillator type converter circuit functions with a transformator that only comprises a primary winding and a secondary winding. Said transformator does not comprise a return coupling winding for the blocking oscillator. The control voltage for the oscillator is derived from the primary voltage of the transformator during the free-wheeling phase. The invention also relates to a voltage monitoring circuit that works independently from the oscillator, the output voltage of the oscillator being repressed when the voltage on the output of the blocking oscillator is too high. A power monitoring circuit functions independently from the oscillator and the voltage monitoring circuit and suppresses the impulses for the power transistor when the power on the output side exceeds a predetermined measurement. | 11-25-2010 |
| 20100259293 | Bus Terminating Part - A bus terminating component has a cylindrical housing that is designed to be inserted in a sealed manner into a PG screw connection. In the interior of the housing sits a circuit made from a bus terminating resistor and a cascade made from capacitors that are balanced by means of resistors connected in parallel. Therefore, no relevant power loss occurs on the bus terminating resistor. | 10-14-2010 |
| 20100258413 | MULTI-POSITION ROTARY SWITCH - A multi-position rotary switch comprises a plurality of identical switch chamber modules that are arranged one next to the other. Each switch chamber module holds a separate line switch allocated to a respective circuit. A standalone actuator housing holds a catch assembly for a switch shaft, which is coupled with a cam slide by means of a gear drive. The cam slide is located between a block like arrangement of switch chamber modules and the housing for the activation mechanism, which is designed for a standard configuration with three switch chamber modules connected to each other. The electrical terminals of the multi-position rotary switch are located on a narrow sides of the individual switch chamber modules. | 10-14-2010 |
| 20100116633 | CIRCUIT ARRANGEMENT FOR LIMITING A VOLTAGE - A circuit arrangement for enforcing an intrinsically safe situation in a hazardous zone features a first switching device that lies in the series arm and a second switching device that lies in the shunt arm. If a fault occurs that would violate the conditions of intrinsic safety, the first switching device is initially blocked and the second switching device is switched through with a time delay such that the output terminals are mutually short-circuited. In addition, a monitoring device is provided for monitoring the load conditions at the switching device arranged in the series arm. | 05-13-2010 |
