A bit of suggestion: with respect to the NPN solution, you will use most of the time the PNP solution like in this video. That's because when you protect by enabling or disabling the ground, that transistor collector will sink all the current returing in the ground, hence all switching noises, rf noises, will come to that transistor. The pnp solution instead connectes the emitter with the supply voltage, and you basically detach or attach the input voltage. I'm talking about the solution in 6:53. That is also called "Transistor controlled Load Switch PNP" which you can find in many application notes
This over voltage protection will be destroyed, when voltage V1 increase above zener voltage + base-emitter voltage of Q1, because above this voltage the current through the base and zener diode will increase exponential. Increase the voltage V1 at your simulator to 25V and look at the base current of Q1! You need a resistor at base of Q1.
I am afraid that IURLC is correct. When the supply voltage is increased to say 25v (over voltage) the b-e across Q1 will be around (25-18) volts. Bang!
How can I use this type of circuit when I make high voltage and high current power supply, say,60volt and 10Amp current. And also like to know how can I use a over load protection circuit using mosfet or igbt based dc moter drivers circuit. Thanks
@@FoolishEngineer thanks for the reply , please a video on explaining multivibrator using transistors eg astable multivibrator used for pulse generation
A bit of suggestion: with respect to the NPN solution, you will use most of the time the PNP solution like in this video. That's because when you protect by enabling or disabling the ground, that transistor collector will sink all the current returing in the ground, hence all switching noises, rf noises, will come to that transistor. The pnp solution instead connectes the emitter with the supply voltage, and you basically detach or attach the input voltage.
I'm talking about the solution in 6:53. That is also called "Transistor controlled Load Switch PNP" which you can find in many application notes
आपके वीडियो में बहुत बढ़िया इन्फॉर्मेशन मिलता है इलेक्ट्रिक व्हीकल के इंग्लिश प्लेलिस्ट को हिंदी में भी पूरी वीडियो आपके पास टाइम हो तो बनाईये
This over voltage protection will be destroyed, when voltage V1 increase above zener voltage + base-emitter voltage of Q1, because above this voltage the current through the base and zener diode will increase exponential. Increase the voltage V1 at your simulator to 25V and look at the base current of Q1! You need a resistor at base of Q1.
I am afraid that IURLC is correct. When the supply voltage is increased to say 25v (over voltage) the b-e across Q1 will be around (25-18) volts. Bang!
Awesome video sir!
Glad you enjoyed it
Thank you for this video :)
Thank you so much for watching!! Please don't forget to subscribe to our channel
Hey please confirm if we applied input of pnp to the base it will active or not?
How can I use this type of circuit when I make high voltage and high current power supply, say,60volt and 10Amp current. And also like to know how can I use a over load protection circuit using mosfet or igbt based dc moter drivers circuit. Thanks
Sir electric vehicle ke baare me aur jankari chahiye hindi me. Ek pura course bana dijiye hindi me.
vaov its amazing
Thank you so much for watching!! Please don't forget to subscribe to our channel
Plz make video on how to select pull-up resistor for transistor
Sure. Thank you so much for watching!! Please don't forget to subscribe to our channel
Sir please make video on internal circuitry , internal working of LM 317 voltage regulator
Okay
@@FoolishEngineer thanks for the reply , please a video on explaining multivibrator using transistors eg astable multivibrator used for pulse generation
Can you do a video explaining how to use QUCS?
Can you please elaborate?
What is the use of Schottky diode here? Can you please explain? I can not understand.
there is no Schottky diode here
Schottky diode in the LT Spice mode is a Baker Clamp diode (see Wikipedia). Improves the transistor switch-off time by preventing saturation.
Over current condition will blow Q1 and the zener no current limiting here
Transistor in 4.21 will stay on cause it connected to ground
Sir eske upar ek blog website likhna tha mujhe hindi me pr koi idea nahin hai, और आपके video ज्यादा english में हैं।🙄
Hindi mai video hai kya sir
Nahi, sorry