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1. At what point on the input cycle does the PIV occur?
PIV, or Peak Inverse Voltage, occurs at the point in the input cycle where the voltage across a diode is at its highest in the reverse direction. This typically happens during the negative half cycle of the input signal when the diode is in reverse bias. So, to put it simply, PIV occurs when the diode is saying "nope, not today" to the incoming voltage.
True or False The voltage rating of a fuse can be greater than the circuit voltage?
True. The voltage rating of a fuse must be greater than the circuit voltage.
What is the voltage rating of a 1ZB43BB zener diode?
43 Volts.
WHAT IS rectifiers 1N4007?
The 1N4007 is a diode with forward current rating of 1 ampere, and a reverse voltage rating of 1,000 volts.
What are the ratings and certificates for The Bridge at Midnight Trembles - 2006?
The Bridge at Midnight Trembles - 2006 is rated/received certificates of: Australia:PG Australia:M (TV rating)
What PIV rating is required for the diodes in a bridge rectifier that produces an average output voltage of 50 V?
Its 50-0.7=49.3V Using this Formula : PIV Rating = Vout - 0.7V
Why PIV is important in rectifier circuit?
PIV, or Peak Inverse Voltage, is crucial in rectifier circuits because it indicates the maximum voltage that the rectifying diode can withstand in the reverse direction without breaking down. If the reverse voltage exceeds the PIV rating, the diode may enter breakdown, leading to failure or damage. Therefore, selecting a diode with an appropriate PIV rating ensures reliable operation and protects the circuit components from excessive reverse voltage conditions. This is essential for maintaining the stability and efficiency of power conversion in rectifier applications.
What are advantages of bridge rectifier?
A bridge rectifier will rectify both halves of a sine wave and give "continuous output" through 360 degrees of the input. Oh, and you don't need a center-tapped transformer to use it.
What is the voltage rating of silicon controlled rectifier?
It depends on the particular SCR. They make them in all different voltage ratings. Please specify the particular SCR you are interested in.
You got to replace a full wave bridge recitifer its a 24 volt 5 amp can it be replaced by one that is 50 volt and 25 amps?
Yes. If it fits it should work. I am assuming this is not a high frequency or sensitive application and that it is a silicon bridge. I know of no 24 volt rated diode or diode bridge. Gil
What is the significance of piv of diode?
The PIV (Peak Inverse Voltage) rating of a diode is the maximum voltage that you should apply to it in the reverse biased condition. Exceeding this voltage can destroy the diode.
Does the current rating of a diode change when it is used in a bridge rectifier EG A bridge made up from four 10 amp diodes would it have a different total current rating. DD?
A : A diode is an dumb animal he does not care how it is used all it cares is that its limitations are not exceeded
Which material we need to show a 9 volt power supply?
Well it depends on several things, does it need to be AC or DC? how much amperage must it be able to supply? For a very basic power supply you could us: A Step-down transformer A bridge rectifier (4 diodes of sufficient voltage and amp rating) Two capacitors; one at 1000uF and one at 0.01uF A 9 Volt voltage regulator (LM7809 is good) Depending on transformer and rectifier, this'll deliver 9V at up to 1A
How do you start a DC motor if there is no 3 point starter?
By the use of auto transformer and bridge rectifier we can start dc motor.
What is the PIV rating of diode?
A diode will provide saturating current if it reaches its Piv. What it should be well at least 1.5 of the applied reverse voltage. For AC at least 2 times to insure that the peak REVERSE voltage is blocked
1. At what point on the input cycle does the PIV occur?
PIV, or Peak Inverse Voltage, occurs at the point in the input cycle where the voltage across a diode is at its highest in the reverse direction. This typically happens during the negative half cycle of the input signal when the diode is in reverse bias. So, to put it simply, PIV occurs when the diode is saying "nope, not today" to the incoming voltage.
I am building a simple 12VDC power supply with a 12VAC transformer and full wave bridge rectifier Whenever I add the filter capacitor I get a voltage of around 15VDC too far from 12V why is that?
There are two reasons for your results. The first relates to the operation of the transformer: All transformers are rated to deliver a maximum current. At that current, the output voltage will be the rated voltage. A transformer that has an output rating of 12V and 1A will deliver a voltage of 12 volts when the current drawn is 1 amp. If the current drawn is less than 1 amp, you can expect the voltage to rise by up to 10% when no current is drawn. The second reason relates to the way AC voltage is measured. 12V AC is an RMS voltage. This represents the "average" voltage. (note that the term average is incorrect but will suffice for this answer). The waveform actually peaks higher than the average level. For a 12V AC voltage the peak voltage is close to 17V. When the smoothing capacitor is added to the output of the bridge rectifier, current will flow into the capacitor to charge it until the capacitor voltage reaches the peak voltage from the rectifier. In this case, the peak is 16.8V minus 1.2V (the voltage drop across two diodes in the rectifier) to give a DC voltage of around 15.5V DC. As soon as a load is added to the power supply, the capacitor voltage will discharge on each cycle. At each peak voltage from the rectifier, it will charge up again. The DC voltage will actually look like a shallow sawtooth when examined on an oscilloscope. There are several ways to obtain a 12 volt DC output from the power supply. The simplest is to use a 3 pin regulator IC called a 7812. There are several versions for different output current and input voltage variants. The output of a 7812 will be held at 12 volts regardless of the input voltage variation. When using a voltage regulator, look up the data sheet for it. Each one has guidelines on using them. The guidelines are simple but important so don't ignore them.
