In this paper, the authors present a constant voltage constant current readout circuit for Ion-Sensitive Field-Effect Transistor (ISFET). The study and investigation of ISFET performance using linear ...
Some circuits require a constant-current source thatdoesn’t necessarily connect to a power-supply rail or toground. The circuit in Figure 1 shows a simple method forachieving that configuration.
Controlling LEDs is really quite simple. As you know, they need to be current limited which is as easy as applying Ohm’s law to your given set of values. To make things even more even there’s a slew ...
Current-source a-Si:H thin-film transistor circuit for active-matrix organic light-emitting displays
Abstract: We describe a four thin-film-transistor (TFT) circuit based on hydrogenated amorphous silicon (a-Si:H) technology. This circuit can provide a constant output current level and can be ...
Controlling LEDs is really quite simple. As you know, they need to be current limited which is as easy as applying Ohm’s law to your given set of values. To make things even more even there’s a slew ...
Chemical field-effect transistor with constant-voltage constant-current drain-source readout circuit
Abstract: Response of Chemical Field-Effect Transistor (CHEMFET) electrochemical sensors are taken from the output of a readout interface circuit that maintains constant drain-source voltage and ...
The LM334 is not only an adjustable current source, but it is also a rectifier. Right on the front page of the TI data sheet are the words: “Reverse applied voltages of up to 20V will draw only a few ...
Some loads such as LED strings, incandescent lamps, etc. may require ON and OFF switching with constant current produced by a simple constant current generator (CCG). That is a profitable option due ...
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