Hello people
Looking for anwers on a schottky diode.
Connect 6 volts gel battery using Schottky Diode experiment with following schottky diode( 1n5822,1N5817) .
First experiment was connect cathode side of diode to postive side of the battery got reading around 6 volt.
Second experiment was to connect the anode side of the diode to postive side of the 6 volt battery also got reading around 6 volts.
Should diode block voltage on one side (should be zero reading on one side of diode connection).
mrel

 

Did you have a resistor or a light bulb anywhere? It sounds like you popped the diode.

 

Schottky's act just like regular diodes, but they are very fast (good for RF), They also drop around 0.2-0.3, similar to a germanium diode. But any diode needs current limiting if you connect it to a battery.

This makes them ideal for crystal radios. Indeed, the crystal in an old fashioned crystal radio was a naturally occurring Schottky diode.

 

Hello there,


Schottky diodes have more than usual reverse leakage so you may be seeing the same voltage because the diode is not a perfect blocker in reverse. It's like connecting a 10k resistor to a battery and then measuring the voltage without any load. If the internal resistance of the meter is high (like 1 to 10 megohms) then it will look like the diode is shorted when it's just the leakage.

This of course means you need a load when you measure the voltage, a load like even 100k would show better results, but 10k even better. Measure the voltage across the load and see how much difference it makes.

To compare, try the same test with a 1N4148 diode which is a 'regular' si diode.

 

Hello people
Looking for anwers on a schottky diode.
Connect 6 volts gel battery using Schottky Diode experiment with following schottky diode( 1n5822,1N5817) .
First experiment was connect cathode side of diode to postive side of the battery got reading around 6 volt.
Second experiment was to connect the anode side of the diode to postive side of the 6 volt battery also got reading around 6 volts.
Should diode block voltage on one side (should be zero reading on one side of diode connection).
mrel

Would these two schottky diode (1n5822,1h5817) be good to use as bypass diode and blocking diode for 10watts and 12 volts rate solar panel?

 

Hello people
Looking for anwers on a schottky diode.
Connect 6 volts gel battery using Schottky Diode experiment with following schottky diode( 1n5822,1N5817) .
First experiment was connect cathode side of diode to postive side of the battery got reading around 6 volt.
Second experiment was to connect the anode side of the diode to postive side of the 6 volt battery also got reading around 6 volts.
Should diode block voltage on one side (should be zero reading on one side of diode connection).
mrel

A bit of leakage is normal for a Shottky-barrier diode - if your voltmeter has high enough resistance, there won't be a lot of volt drop with the diode either way round.

Make a potential divider with the diode and a 220R resistor to put across the battery for measuring the volt-drops.