Electrical drive system for adjustable furniture, has manual controller with electrical overload protection in form of current limiting circuit and limiting circuit comprises field effect transistor with measuring sensor

摘要

The system has a drive, current supply, manual controller with multiple function keys and a control. The manual controller has an electrical overload protection in the form of a current limiting circuit. The limiting circuit comprises a field effect transistor (FET) with a measuring resistor, attached before the field effect transistor, and a transistor, which holds field effect transistor switched off over specified current.