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Diodes have capacitance, placing a limit on their switching rate.
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∙ 10y ago
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Can you make a transistor by connecting two diodes back to back?
Two diodes, whether or not discreet, cannot work together as a transistor. The diodes and transistor have different profiles to optimize them for their specific functions
Can diode work on ac power supply?
diodes conduct electricity in only one direction but as ac change direction in each of its cycle diodes can only conduct half of its cycle which will give u a pulsating dc. but if dc is mixed with ac and if it can put whole of its cycle in positive direction diode can conduct ac. so diodes are usually used to produce dc from ac.
How does a frequency drive work?
Frequency drives are an adjustable-speed drive used for electro-mechanical drive systems. They control the motor speed and torque by varying motor input frequency and voltage.
How does the veractor diode work?
They are usually used as voltage variable capacitors,not as diodes. The diode is made in such a way that when reverse biased (where the voltage across the diode is in the polarity where very little current flows) the capacitance varies considerably with the voltage across it. This action is usually used to make resonant Inductor-capacitor circuits have their resonant frequency dependent upon the "DC" voltage across them. For instance: A low frequncy signal, like Audio, is impressed across a veractor tuned resonant circuit to make a much higher frequency oscillator (at say an FM station frequency) vary its frequency in proportion to the amplitude of the "instantaneous" Audio signal. (at 100 MHz nominal oscillation frequency, the audio is like slowly moving "DC"). One can make a frequency modulated radio this way. (rather distorted; veractor characteristics of V across to C across are pretty non-linear).These diodes are made by having one side of the "P-N" junction that forms the diode be very lightly doped. What this does is make the depletion region; the region where conductive carriers are pulled out by the reverse bias across the diode (where it doesn't conduct) change its width considerably more than usual. (all diodes have some of this voltage variability) This depletion width is non-conducting and acts like the dielectric of a capacitor. As the voltage across changes the width of the dielectric changes thus the capacitance across the device changes.
What is the voltage and frequency used in US and why?
the voltage and frequency are 110v and 50(or)60hz because the devices which are invented in us are work at that voltage and it is efficient for that devices.
Why ordinary diodes dont work properly At high frequencies?
Because of stray capacitance. At very high frequencies, the inter-electrode capacitance has a low enough impedance that the diode no longer cuts off when reverse-biased, there is still significant conduction via capacitive coupling. High-frequency diodes are constructed so as to minimize this capacitance.
What type of diodes are used in bridge rectifier?
Mainly diodes that handle a fair amount of power. When diodes are constructed in a "bridge", it usually means someone is trying to rectify AC to DC voltage in what is considered a "full wave". Both sides of the sine wave + and - are utilized to change the AC current into DC. Typically power diodes are used in this fashion. Crystal diodes or other types will not work in a bridge circuit as they cannot handle the amperage or wattage that typically is wanted. Power diodes are usually ones that handle 1 amp or more of current. Some power diodes can handle 60 amps or more if properly constructed in a heat sink dependent upon their ratings.
What are the application of low pass and high pass filter?
they are used in industries so to able you to work on particular frequency and cut the other for e.g if you are working for high frequency then low frequency will be cut and vise versa
How does a high frequency induction motor work?
In a high frequency induction motor, EMF is induced leading to current flow. Torque in the rotor coil increases. As frequency increases, Impedance of the Rotor increases and currency reduces.
Why op amp do not work in high frequency?
the op amp is a one IC which does not work at hige volteg so the IC not consumed the high frequncy
Can refrigerant charge be too high?
Yes. An ac system will not work properly if over charged.Yes. An ac system will not work properly if over charged.
Can you have a high bass frequency?
Yes, you can have a high bass frequency. Prolonged exposure to high frequencies can cause hearing loss. In audio work, "bass" usually refers to the low frequencies; "treble" refers to higher frequencies.
Do high-frequency facial machines work?
Yes, it works well for your skin. High-frequency facial machines provide a range of benefits when you use them properly. It decreases your eye puffiness and reduces dark circles, which affect your skin glow. CONTACT INFORMATION ADDRESS Hobourn House, Priory Road Rochester, Kent, ME2 2EG PHONE 01634 565005 / 07471237252
How does each wave in an electromagnetic spectrum work?
It goes from longer waves, to shorter waves. Another words Low Frequency to High frequency. I'm not quite sure how to explain how they EACH as and individual wave work.
How does the electric plug work for killing indoor inscets?
They use high frequency sound we humans can't hear, but don't really work.
Why does a high pitch noise have a greater frequency?
because the vibration is so fast your ears hurt low pitched sounds vibrate slowly and doesn't hurt
Why element temperature of screw compressor rises very high?
oil pressure low oil not properly cooling thermostatic valve not properly work
