what are advantage and disadvantage of zener diode?
Answers were Sorted based on User's Feedback
Answer / abdul wahab
Advantages of zener diode:
Control
• The ability of the Zener diode to control and reverse part of the current flowing through it means it can be used to regulate and stabilize the voltage in a circuit and prevent problems that can occur when the supply or load voltage varies. Circuit designers can use the Zener voltage of the diode to exactly regulate and stabilize the voltage in the circuit.
Size and Expense
• Zener diodes are very small, so they can be used in many small electronic devices, such as handheld devices and cell phones. They also can be used in smaller circuits that would not work with any larger form of current regulation. Zener diodes are less expensive than other diodes used in these devices. This can cut the cost to produce a device such as a television or computer, lowering consumer costs.
Performance
• Zener diodes have a very high performance standard, often more than the electronic device they are placed in needs to operate at maximum efficiency. These diodes are equipped to handle a higher voltage than the standard operating voltage, so they are able to handle more power. These diodes will still operate at standard voltage, but will not blow out if the voltage is still under their threshold. They are also small enough to allow current to flow quickly through their circuits.
Compatibility and Obtainability
• Zener diodes, due to their lower cost and greater controlregulate voltage. They are also used in other applications, such as in solar panels. Though these diodes don't often get damaged due to their current controls, they can still blow out if the current exceeds what they are equipped to handle. If this were to happen, the SCR would also likely blow out and both elements would need to be replaced. Luckily, Zener diodes are fairly easy to obtain due to their common use and low cost, are commonly used in electric devices. They are also compatible with most systems, so they are a preferred method to
Disadvantages:
Zener diodes cancel out voltages by applying even larger voltages in the reverse direction, wasting electricity in the process. Additionally, Zener diodes have a relatively poor regulation ratio and are generally not as good as transistors.
Is This Answer Correct ? | 69 Yes | 21 No |
What is difference between A.C & D.C Resistance ?
why the stator is not laminated in DC machines?
For these 2 devices what their power ratings are ? 1) single phase : AC 220V & starting amps 3Amps (i.e. starting torque) and the stabilized amps 2A ... For deep freezer 2) single phase : AC 220V & starting amps 2.7Amps (i.e. including the starting torque of a CRT monitor) and the stabilized amps 1 Amps thanks
I want to know what must the CT ratio be on a load of 300A is a 3PH nutral to earh installation?
i need list of swg(standard wire guage) or area of conductor v/s current carrying capacity of conductor copper & alluminium...
conditions for parallel operation of dc generators
what is the main purpose of line PT and bus PT?
What does quality factor depend on in resonance?
what is onan, onaf, ofan, ofaf in transformer?
A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is onbserved the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?
how will reduce the voltage. if 12volt/250ma transformer toreduce 6 volt
WHY FLEXI LINKS ARE USED INBETWEEN GENERATOR TERMINAL OUTPUT & BUS DUCT CONDUCTOR.