PIC16F84 UGN3503 LM358 ile 0 80A Amper Metre

Amper ölçüm, amper metre devresi pic16f84 mikrodenetleyici ile yapılmış kullanılan akım sensörü ugn3503 sensör çıkışı lm358 op amp ile kuvvetlendirilip 16f84 entegresinin RB0 bacağına bağlanıyor akım bilgisi led display (lts542r) üzerinde görüntüleniyor mikrodenetleyici ile akım ölçme için iyi bir örnek

It’s now rare to see an amp meter installed in a car. Instead, virtually all modern cars have an “idiot” light to indicate battery charging. Normally, this light is off when the engine is running and only comes on if the alternator fails; ie, when no charge is being delivered.

Apart from that, it doesn’t provide any other information during normal driving.

This means that when the light is out, you have no idea how much current is going into the battery or is being pulled out. And even when an ammeter was fitted, it was hardly what you would call a precision instrument. Most only gave a very rough idea of what happening.

However, if you are an enthusiast, you will want to know more about battery charge and discharge rates. This Automotive Ammeter can provide this information with a high degree of accuracy.

• Includes 7-LED bargraph display plus 2-digit readout
• ±0-30A indication on bargraph in 5A steps
• 1A resolution on 2-digit display
• Typical 80A maximum reading
• Dual indication for charge and discharge
• Automatic display dimming in low light conditions

Kaynak: http://www.siliconchip.com.au/cms/A_30551/article.html alternatif link: pic16f84-ugn3503-ve-lm358-ile-0-80a-amper-metre.RAR alternatif link2