Zener Diode checker


Rating: 0.00 / 5 
Meters Circuits / Meter Counter Circuits
Many times we have found itself in the necessity to use a Zener diode and cannot to know the voltage of operation. Many times we cannot read the characteristics or the type that is written on her. In this case, but in different we can also use the circuit of Fig.1. The T1, D1 and C1 they constitute a system of half-wave rectification. If push the switch S2 a DC current passes in from current limiter Q1 and the diode Zener DZ which we check. Q1 stabilizes the current in the price of 10mA independent from the zener voltage that we have connected in the connector J1. In the connector J2 we connect a digital voltmeter. There we see the voltage in the zener DZ. The circuit is reliable for measurements down to 25Volts. You have clue of low voltage 0.8Volts likely the diode DZ, is connected reverse. Change the polarity of diode DZ.
Zener Diode checker - schematic

Q1=2N5363 [N-Channel JFET] S1=ON/OFF SW For 230Vac 1A DZ=Diode Zener Under Test D1=1N4002 S2=Push Button Switch [Normal Open] D.V.M=Digital Volt Meter C1=470uF 50V T1=230Vac//12Vac 300mA Transformer J1-2=2pin conn. with 3.96mm pin step

Recommended videos

    Duration: 5:33.
  • Easy way How to test Capacitors, Diodes, Rectifiers on Powersupply using Multimeter
    Duration: 9:07.
  • Diodes - How to test using a multimeter
    Duration: 2:47.


  • OCRegister
    OCRegister runner Boris Berian now hitting his peakHe was the 2016 national champion and represented the United States at the 2016 IAAF World Indoor Championships in the 800 , where he won the gold medal. MICHAEL ..... Within a few days,
     28 May 2016
    CANOE & KAYAK While it was happening, the waves would elevate to a really high level, and the wind would blow with the ocean's storm power, even to 7 (23 feet). A huge fun! After the storms were gone, the waters were quiet again, the wat
     27 May 2016
  • War on the Rocks
    War on the Rocks (Да) muttered the oad-shouldered man behind the diner , eyes apathetically glancing at the television mounted in the corner of the room playing Russian pop music videos. The place was a far cry from a favorable Ye
     24 May 2016
  • VICE News
    VICE News Scientists from the Woods Hole Oceanographic Institution discovered the first hydrothermal vents in the Galapagos Rift, more than 2,500 (8,202 feet) down in the Pacific Ocean off the west coast of South America. .... "When we were
     24 May 2016
  • The Denver Post
    The Denver Post Katie is up at 6 a.m. on a Tuesday morning, eating her usual eakfast of oatmeal beside 14-year-old other, Ian, at the kitchen in their family's gorgeous home on a hillside overlooking Colorado Springs. She is out the door at
     22 May 2016
  • Charlotte Observer
    Votel, who has headed U.S. Central Command for just seven weeks, became the highest-ranking U.S. military officer known to have entered Syria since the U.S. began its campaign to the Islamic State in 2014. The circumstance was exceptional
     22 May 2016
  • Officer.com (press release) (registration) (blog)
    Officer.com (press release) (registration) (blog) But this high-tech device of awesomeness doesn't fire bullets - the DroneDefender from Battelle sends out a signal up to 400 away to take advantage of typical standard drone (or UAV if you're
     21 May 2016
  • and win
    Santa Rosa Press Democrat
    Santa Rosa Press Democrat Her bubbly personality is in stark contrast to the cold, hard numbers she puts up: the Empire's second-fastest (by less than a second) all-time 1,600 and third-best 3,200 . Track fans haven't seen a female runner po
     21 May 2016
  • Sports Illustrated
    Dana Vollmer, looking to defend her 100- butterfly gold medal at the Games this summer, continues her incredible comeback after giving birth in March 2015. The two-time Olympian won the 100- freestyle in 53.59, the fastest time of any
     17 May 2016


Leave Comment

characters left: