Hi, i'm working on a project at school and have a problem with using a sensor to trigger a
. The circuit is shown below. Basically i want.
Simple Circuit Design: Simple MOSFET Tester CircuitTo m...
Hi, i'm working on a project at school and have a problem with using a sensor to trigger a transistor. The circuit is shown below. Basically i want.
Amateur Radio Quiz: The Transistor, Our Three-Legged Friend ...
6) True or False: To cause current to flow in an ...
Here is a very simple circuit that can be used to check the hfe of transistors. Both PNP and NPN transistors can be checked using this circuit. Hfe as high as 1000 can be measured by using this circuit.The circuit is based on two ...
200mA NPN - Electronic Circuits Pro...
Q1 = BC238 25V 100mA NPN Transistor Q2 = BD139 80V 1.5A NPN Transistor T1 = 220V Primary, 12+12V Secondary 3VA Mains transformer PL = Male Mains plug & cable L1 = Primary (Connected to Q2 Collector): 100 turns Secondary: 10 turns ...
Sub & Amp HELP!!! - my.IS - Lexus IS F...
if yes, i want to build the above circuit ( at part NPN transistor) to become darlintong circuit without use the base pin at pin 6. Then what suitable transistor that i should choose?i will use 12 V DC supply voltage to darlington ...
Simple LAN Controlled Stereo Audio Switc...
(7) on the schematic. step 33Connect the motion sensor output. This is the output from the motion sensor, through a 270 ohm resistor to the base of a
NPN transistor.(8) on the schematic. step 34Connect battery negative to the
transistor ...
Sustainable Suburbia: Radio Gaga
Technorati tag: Npn transistor
Wed, 18 Nov 2009 03:31:11 -0600
We discussed a PNP
above. The only differences between PNP and
NPN transistors are in manufacturing (ie location of the p-layers and n-layers) and of much importance in the biasing. The schematic symbols ...
Technorati tag: Npn transistor
Sat, 14 Nov 2009 03:40:21 -0600
Abstract: You can boost the output-current capability of a voltage-reference IC without degrading its output accuracy, by adding an NPN-transistor buffer in the feedback loop of the IC's error amplifier. The circuit shown enables a ...
What would happen if I hooked up an N...
Technorati tag: Npn transistor
Sat, 07 Nov 2009 03:41:15 -0600
Abstract: You can boost the output-current capability of a voltage-reference IC without degrading its output accuracy, by adding an NPN-transistor buffer in the feedback loop of the IC's error amplifier. The circuit shown enables a ...
What would happen if I hooked up an N...
Technorati tag: Npn transistor
Tue, 27 Oct 2009 03:41:17 -0500
Then, the output would be fed into the base of a
NPN , where the emmiter to ground through a resister. The collector would be connected to a high frequency signal generated by an oscillator. I'm...
Technorati tag: Npn transistor
Wed, 21 Oct 2009 03:40:25 -0500
Hi! I need a
npn switching
that runs on a 9v or less circuit. Any ideas on what to get???
Simple 3 Transistor Audio Amplifier Circuit for 80 mWThis has...
Technorati tag: Npn transistor
Fri, 16 Oct 2009 03:30:26 -0500
You can see 3.3 ohm resistors connected to the emitter of PNP-NPN transistor couple, and the purpose of this resistor is to stabilize the transistor gain, so the temperature change won't affect the performance much. ...
Zener Controlled Transistor Voltage Regulators | ...
Technorati tag: Npn transistor
Wed, 30 Sep 2009 03:41:30 -0500
The emitter of the transistor must be connected to virtual ground (the inverting input terminal of op-amp). To allow the capacitor to discharge from left to right, NPN transistor would have to be replaced by PNP transistor. ...
electronic devices and circuits from var...
Technorati tag: Npn transistor
Sun, 27 Sep 2009 03:42:27 -0500
Slow turn-off of the gate voltage prevents this, since the induced channel turns off slowly and partially shunts the N-P-N transistor; the small current through this transistor keeps αN-P-N sufficiently low to avoid IGBT latching. ...
simple high gain amplifier circui...
Technorati tag: Npn transistor
Thu, 24 Sep 2009 03:31:37 -0500
I'd go for the most basic single transistor common-emitter stage; an NPN transistor, 100 Ohm emitter resistor, 470 Ohm collector resistor, then bias with 1K base to 0V and 8k2?? base to V+. This should be adjusted to give about 12V on ...
IGBT-Schematics and How IGBT works | ...
Technorati tag: Npn transistor
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