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HBridge with transistors – Circuit Schematic
HBridge with transistors
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Mosfet circuit schematics – Circuit Schematic
Mosfet circuit schematics
Sid, I put together two working examples, one using a PNP and NPN transistor, and one using two MOSFETs. Both work fine, but as expected the MOSFET circuit cons...
Bipolar transistor biasing – Circuit Schematic
Bipolar transistor biasing
Bipolar transistor amplifiers must be properly biased to operate correctly. In circuits made with individual devices (discrete circuits), biasing networks consi...
Transistor and diode tester – Circuit Schematic
Transistor and diode tester
Transistor and diode tester in this website is specially design for testing all kind of transistor .using diode principle diode can also be checked.various type...
TRANSISTOR CIRCUITS COLLECTION – Circuit Schematic
TRANSISTOR CIRCUITS COLLECTION
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How do you make a shift/scale circuit using a transistor resistors and a voltage source – Circuit Schematic
How do you make a shift/scale circuit using a transistor resistors and a voltage source
A working circuit with an opamp but my professor said that they are hard to work with, and gave me some transistors to use instead. enthdegree May 30 `13 at 17:...
Transistor current limit circuit power handling – Circuit Schematic
Transistor current limit circuit power handling
Designing a simple current limiter, which charges a large (4. 7mF) capacitor with a charge current of (roughly) 500mA from a supply voltage from about 10-20V - ...
transistors How does this circuit diagram work – Circuit Schematic
transistors How does this circuit diagram work
R2 controls how fast C1 charges, and I know that at a certain point C1 will trigger Q1 and Q2 to release the 9 volts (see 2). This 9 volt burst creates the clic...
transistors Controlling LED with 300mV AC signal – Circuit Schematic
transistors Controlling LED with 300mV AC signal
Control a LED with audio signal, but the problem is, that output signal is only 150mVpp (with 150mVpp positive offset). In my understanding, it needs to be high...
voltage transistor loop to limit the current – Circuit Schematic
voltage transistor loop to limit the current
The other transistor (T2) is controlled by the current flowing through the resistor (R1). If a DALI slave unit is connected, this current will be the same as th...
arduino pulse to transistor power maximum – Circuit Schematic
arduino pulse to transistor power maximum
If they have to be both powered from the battery do I need to connect the emitter to the ground of the Arduino AND the battery to stop all the current from flow...
transistors Mystery circuit: latching relay control with transitor / capacitor why doesnt it work – Circuit Schematic
transistors Mystery circuit: latching relay control with transitor / capacitor why doesnt it work
Using a single-coil latching relay, which latches/resets with opposite polarities. I`ve tested the circuit with dual opposite-biased LEDs too, no light flicker ...
transistors Having difficulties using a darlington (BD681) to drive a 12V fan from an Arduino – Circuit Schematic
transistors Having difficulties using a darlington (BD681) to drive a 12V fan from an Arduino
Power a 12v fan using a darlington so I can control the speed from an Arduino. When I wire up as below nothing happens, even though I`m sending a PWM signal: Pl...
Is it possible to use an NPN transistor to control a 5V power supply from Arduino – Circuit Schematic
Is it possible to use an NPN transistor to control a 5V power supply from Arduino
The emitter is always going to be a few hundred milli volts behind the base voltage (in this type of configuration) and as the base voltage is 5V, depending on ...
Transistor current mirror circuit – Circuit Schematic
Transistor current mirror circuit
The bases and emitters are tied together, so the base-emitter voltages are equal. Since we assume the transistors themselves are identical, equal Vbe means equa...
Saturating a N-Channel MOSFET – Circuit Schematic
Saturating a N-Channel MOSFET
It needs 2 volts as its threshold however, that only allows a small amount of curent to flow through the transistor. How do I know how much voltage I need to ma...
PNP transistor switching time puzzler – Circuit Schematic
PNP transistor switching time puzzler
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bjt transistor circuit finding the resistances – Circuit Schematic
bjt transistor circuit finding the resistances
I have been given the following circuit diagram and have been asked to compute R2 and RC such that, at the Q-point, the circuit will behave as follows: VCE=5V V...
What kind of transistor do I need to amplify an Arduinos PWM outputs – Circuit Schematic
What kind of transistor do I need to amplify an Arduinos PWM outputs
30 incandescent lightbulbs be controlled by my arduino uno on 3 channels (10 bulbs to a channel in parallel). I`ve used the arduino before to control a number o...
Simple Deadband Generator Targets Push-Pull Drivers – Circuit Schematic
Simple Deadband Generator Targets Push-Pull Drivers
In typical push-pull driver applications, the npn-pnp transistor pair is alternately turned on and off using a square-wave signal. A simple driver circuit uses ...