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Do the ohmmeter test confirm the go-on-go test for the diode?
Yes, but only at a basic level. If the diode measures low resistance in one direction, high resistance in the other, you know that it is not short-circuited. But... 1. If it's a voltage-regulator/reference (Zener) diode, you do not know whether it has the correct breakdown voltage, 2. If diode leakage is important, you have not tested for leakage and the ohmmeter test does not do this reliably, 3. Your ohmmeter test voltage is probably no more than 9 volts, so you have not tested for high-voltage breakdown, and 4. If it's a rectifier (especially a high-current diode) you have not tested its forward voltage at full load current.
What happens when a diode goes bad?
how can u tell if the rectifier is bad on a 2001 suzuki intruder 1500lc
Which type of diode used in bridge rectifier?
You can use most diodes for that purpose, and particularly silicon diodes. However, you should not use zener diodes and similar for rectification purposes. Otherwise, you will likely not get the intended result. If the voltage exceeds the avalanche voltage, then the zener diode will no longer rectify, but conduct the other way as well.
When both junctions of npn diode are reverse biased?
When p-n junction of a diode reversed biased then majority carriers are not able to cross the junction and are attracted in respective regions.So current becomes approximately zero.But because of minority carriers a reverse current keeps flowing.It is called Reverse Saturation Current.And due to attraction towards sides,charges go away from junction.So width of depletion reason increases.
How can you replace a diode with a relay in a circuit?
In certain cases, yes. A diode is a valve for current. A relay is a switch that is actuated by current. If you have a flow of current going from A to B and you only want it to go from A to B you can use a diode in series between A and B. You can also use a switch in series between A and B that is controlled by a relay that is in parallel with the switch. Add a large resistor in series with the relay so that it does not permit too much current to back flow through it. Configure the relay to open the switch when the current is trying to go from B to A and to close when the current is trying to go from A to B. This is not a leak free valve. Current will be going back through the relay while it is holding the switch open. As mentioned put a large resistor in series with it to reduce this. You cannot have this resistance too large though or the relay will not have enough current to maintain the switch. Another caveate is that this will not be a fast acting valve. There will be some time during current direction changes when the switch will be spending time openning and closing. It is a mechanical switch after all.
Can bad diodes in the alternator cause the battery to go dead when the car is off?
Bad diodes in the alternator can cause the battery to go dead when the car is off. The diode bridge (six diodes) is directly connected to the battery, and is used to convert three phase delta AC from the alternator's stator to DC for the battery. Normally, if the engine is not running, the diodes are reverse biased and do not conduct current. If one of the high side diodes is shorted then the diode trio (another set of three diodes supplying the regulator/rotor) could conduct and drain the battery. Often, a diode failure is a short or an open. A short in a high side diode along with a short in a low side diode would result in high current from the battery, and that would probably blow the fusible link. An open would result in poor performance of the alternator.
When reversed biased a diode acts like an open circuit?
The key function of a diode is to control the direction of the flow of current. Current passing through a diode can only go one way, which is called forward biased. In this setup, current is continuous hence the circuit is closed. When there is no current passing through, there will be no flow, and this is called reversed biased. In such a case, current is not continuous, hence it is called open circuit.
2001 toyoto blows fuse when you go in reverse?
Not enough information. WHICH fuse blows out???
Do the ohmmeter test confirm the go-on-go test for the diode?
Yes, but only at a basic level. If the diode measures low resistance in one direction, high resistance in the other, you know that it is not short-circuited. But... 1. If it's a voltage-regulator/reference (Zener) diode, you do not know whether it has the correct breakdown voltage, 2. If diode leakage is important, you have not tested for leakage and the ohmmeter test does not do this reliably, 3. Your ohmmeter test voltage is probably no more than 9 volts, so you have not tested for high-voltage breakdown, and 4. If it's a rectifier (especially a high-current diode) you have not tested its forward voltage at full load current.
Why do you need to structure transistor as diode?
A transistor is not a diode. It is also not a pair of back to back diodes. Two diodes connected back to back will not function like a transistor because their junctions are not in close proximity like they are in a transistor. The only reason for "thinking" that a transistor is "like" a pair of back to back diodes is for purposes of quick go-nogo testing with a multimeter, but that will only assess open, short, and leakage status, as well as polarity, but not any of the more useful things, such as hFe.
When a diode is properly forward biased what is the voltage drop across it equal to?
The forward biased voltage drop of a diode depends on the type of diode and the current through the diode. A typical silicon diode will exhibit a voltage drop between 0.6v and 1.4v depending on current. An LED might range from 2v to 3v. A germanium diode might go a low as 0.2v. Bottom line; it varies.
What happens when a diode goes bad?
how can u tell if the rectifier is bad on a 2001 suzuki intruder 1500lc
What is wrong when your interior and tail lights go out and you put a new fuse in then they come on and go out again and blows the fuse?
it sounds like a short in the wiring you should probably have a mechanic or an electrician test each of the wires for arcing
92 integra blows heat but very little when you go to increase nothing happens how do you get behind the switch?
there are resistors located by blower motor. could be open. they control blower speed.
When the sun blows up do the other planets blow up to?
yea they do when one blows up a chain reaction happens earth will go second
How can check a transistor with digital multimeter?
If your multimeter has a transistor check (hfe), then place the Collector,Base& Emitter in the CBE port of multimeter. Turn the shaft to Diode mode. If the value is zero,skip that transistor. You can use the forward resistance of each junction, using the ohms range or diode check function. Put the leads on the Base and Emitter, then reverse the leads. You should get about 600Ohms forward bias and open circuit (infinity) reverse bias. Do the same between the Base and Collector. You should get the same results. Finally put the leads between the Collector and Emitter. You should get open circuit both ways around. Be aware that some high power transistors have a diode across the Emitter and Collector. These tests will just be a basic 'go - no go' test. It may pass this test and yet still not perform fully. You can see obvious faults, like a dead short both ways on each junction or across the Emitter to Collector.
How fast does a Indy car go before it blows the engine?
240mph
