Optoelectronic device for optical detection unit for liquid meter, has transmitter unit comprising resistor connected to voltage source, and capacitor connected to voltage pulse source and to resistor and anode of electroluminescent diode

摘要

The device has a transmitter unit (20) with a capacitor (Ce), a resistor (Rpol) and an electroluminescent diode (40). The resistor has a first terminal connected to a voltage source (Vdd). The capacitor has a first terminal connected to a voltage pulse source (Px) and a second terminal connected to the second terminal of the resistor and to the anode of the electroluminescent diode.