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What else can I help you with?
What is difference between bjt and scr?
BJT is nothing but the addition of two PN junction diodes. There are two types of BJT= P-N-P or N-P-N P-N N-P + or + N-P = P-N-P P-N =N-P-N SCR is a thyristor which is made adding two BJTs. Of course they are made of sillicon. Exempli gratia: P-N-P + + N-P-N = P-N-P-N comparison between scr bjt and mosfet Check the related link for further information.
Which is faster small signal bjt or power bjt?
It depends on the exact part numbers, but power devices are typically slower. There are, of course, RF power transistors, so you have to compare apples with apples.
What is conduction angle in SCR?
The conduction angle in an SCR is the phase angle relative to the power line at which point the gate is fired to commit the anode to conduct to the cathode. By varying the conduction angle, you can change the average power transferred by the SCR.
Is BJT used for high speed power application?
Yes
Where does a SCR differ from a power transistor in operation?
thyristor can be scr or triac scr is strictly dc a triac is back to back scr's with a common gate two scr's back to back can be gated independently scrs cost less than triacs an scr can be combined with a full wave bridge to make an equivalent to a triac but this gives an additional 1.5V forward voltage drop
What is the formula for bjt power consumption?
it is the collector voltage multiplied by the sum of all the currents.
What happened after triggering an SCR the gate pulse is removed the current in the SCR will?
After triggering an SCR (Silicon Controlled Rectifier) and removing the gate pulse, the SCR will continue to conduct current as long as the anode current remains above the holding current threshold. Once the current falls below this threshold, the SCR will turn off and stop conducting. This characteristic allows the SCR to be used in various applications, such as in power control and switching circuits.
How scr can control the temperature for electric hot plate?
One way is to use a microcontroller with an output pen set up with hardware PWM into the scr, the scr then controls the heating element of the hotplate. A thermistor can be added for a control feedback loop.
Why fet is preferred over the bjt?
Disadvantage:Easy to damage when compared to BJT
What is firing angle of SCR?
The firing angle of a Silicon Controlled Rectifier (SCR) is the angle (in degrees) in the AC cycle at which the SCR is triggered to conduct. It determines the point in the waveform where the SCR is turned on, thereby controlling the amount of power delivered to a load. A lower firing angle results in higher output voltage and power, while a higher firing angle reduces both. This parameter is crucial in applications like phase control in light dimmers and motor speed controls.
What are the example current controlled device?
Bipolar junction transistor(BJT)
Why SCR is not called GCR?
because it is gcr not scr
