This is the standard method of using any transistor like a switch for controlling a given load. You can see when a small external voltage is applied to the base, the transistor switches ON and conducts heavier
Transistor as a Switch If the circuit uses the BJT transistor as a switch, then the biasing of the transistor, either NPN or PNP is arranged to operate the transistor at both sides of the I-V characteristics curves shown below. A transistor can be operated in three modes, active region, ...
Is the Use of a Transistor Within SOA? Confirmation of Safe Operating Area (SOA*) Part 1 SOA specifies the area where a transistor can be driven safely. However, SOA is merely based on a single (One) pulse alone. Therefore, it is necessary also to check if all the pulses stay within ...
A NPN transistor (BJT) needs a specified amount of current to flow from its base to its emitter rail or ground rail in order to actuate (pass) a heavier load current from its collector to its emitter. A PNP transistor (BJT) needs a specified amount of current to flow from its emitter ...
1.Transistor’s polarity (NPN/PNP) Select either an NPN or PNP BRT according to the logic of the preceding circuit. Use an NPN BRT if the output of the preceding circuit can assume the High-Z state and is pulled down to the GND ...
During college I found that a silicon solar cell connected to a transistor pulse generator emitted flashes of invisible infrared that could be detected by a second solar cell. In 1972, I used near-IR LEDs and laser diodes to send and receive voice signals, through the air and through optical...
The ESP-01S only has one led, a Blue led connected to GPIO2. It turns on when GPIO2 is output LOW. It is simple to use just drive GPIO2 as you need to the turn the led on and off. Here is a simple sketch,ESP-01S_LedFlasher.ino, using thePinFlasherclass to flash the Blue Le...
The transistor is a simple component that you can use to build a lot of fun projects. In this hands-on guide, you’ll learn how transistors work so that you can use them in your next circuit. And it’s actually pretty easy, once you learn the basics. I’ll focus on the two most...
characteristics of the output transistor. In order to use for signal transmission, it is necessary to fully satisfy the "L" level of the device connected to the load side. Here, we set VCE = 0.3 V as the target value.When IF = 10 mA, VCE = 0.9 V at RL = 1 kΩ, which is ...
Transistor's AI transcripts feature Otter.ai Rev (This list might not be up-to-date because these features are coming to more tools quite frequently.) I like the more modern AI-based transcription tools because they understand language better and are thus able to make transcripts that actually...