Zener voltage measuring instrument.
Hello colleagues.
I haven't published anything for a long time. I spend more time on mechanics in the workshop. Milling machine, lathe.
Today, a simple meter, a Zener diode voltage measuring instrument. Diagram from the Russian-speaking forum. Both the simple diagram and the execution of the device. Three ready-made modules for a few zlotys and one resistor, capacitor and a few centimeters of cable. It has an external battery charging.
It works immediately after assembly. Measures diodes up to 30V. One note when doing this
check the correctness of + - and U wires on the display PCB. There are different colors and sequence of leads.
I haven't published anything for a long time. I spend more time on mechanics in the workshop. Milling machine, lathe.
Today, a simple meter, a Zener diode voltage measuring instrument. Diagram from the Russian-speaking forum. Both the simple diagram and the execution of the device. Three ready-made modules for a few zlotys and one resistor, capacitor and a few centimeters of cable. It has an external battery charging.
It works immediately after assembly. Measures diodes up to 30V. One note when doing this
check the correctness of + - and U wires on the display PCB. There are different colors and sequence of leads.
Comments
This is called "Creative use of ready-made modules". Simple but effective and most importantly - cheap. Technical question: How often do you need to tighten loose screws of the contact contacts? And... [Read more]
Nice stuff. For a long time, I have intended to build something like this, because I have a whole drawer of unidentified zener diodes. These contacts are a good idea, but I propose a screw on the bottom,... [Read more]
https://www.elektroda.pl/rtvforum/topic3564605.html here for a module less. [Read more]
I suggest using a converter with current stabilization. Lead the current adjustment potentiometer outside the housing. Draw it a scale or turn on a milliammeter and you can even play characteristics. This... [Read more]
I have already spoken on a similar project before. I understand that self-making from various "scraps" lying in drawers - the joy of the hobby and "action" is priceless. However, I just wanted to note,... [Read more]
I measured the diode measurement current, it is 10mA. If we mount the diode the other way around, it will measure us and display the voltage drop in forward direction. I do not tighten the screw. There... [Read more]
The unquestionable advantage of this Zener diode tester over the "all-calling" tester is the measurement time; when measuring unidentified "shortcomings" - @justyniunia wrote about it - waiting 5 seconds... [Read more]
The device seems simple, because it performs only one task, but it will certainly be useful. Nice made. However, quite technically advanced components, an inverter, a voltmeter are used. Battery power... [Read more]
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Exactly, this is how I drip: useful how often? I repair some equipment, but so to speak: I had to measure the Zener voltage just recently, but probably for the first time in a good few years. In a switching... [Read more]
Both. Testerek "omkomiak" I have for points from the Electrode. "Made" (from 30 years ago) I have in a small box with a measurement current switch; I made it for the purpose of measuring Zener diodes... [Read more]
I do not deny the tester's performance, it is always a kind of satisfaction with the made tool. But is it worth it? As colleagues have mentioned, such a diode is not measured often enough, most often... [Read more]
The component tester (e.g. LCR T7) has a built-in voltage measurement of zener diodes as well as various other semiconductor components. The cost (for ali ...) is slightly higher than this project and... [Read more]
Well, the Polish language turned out, even though it is a very detailed language. This tester measures other electronic components but not their voltages. It does not measure the voltage of BE connectors... [Read more]
It measures a series of tensions at elements where these drops are up to several V. Eg Ube where you say it can't. This is due to the processor's supply voltage and the ability to measure it. At... [Read more]
No UBE reverse voltage. [Read more]
Okay, but why do you write that the mentioned device cannot do that, if the author's design does not make it possible? If you wanted to stick to a mental shortcut, okay, I'll be more careful about... [Read more]
I did not write to find fault, but to indicate that it is easy to convert the device to enable such measurement. And this imprecise sentence is just what I indicated by the way. [Read more]
It would be problematic to modify this device from the project, you would have to use another Step-Up converter. But, as it usually happens, it is almost "ready" for such tasks at friends from China. Although... [Read more]