Thursday, October 24, 2013
Zener Diode Tester Schematic
If contact S1 is closed, the resistance R1, T1 and Zener diode current flow. Base transistor T1 is connected to power supply trough the R4, so the transistor conducts.
Zener current is equal to the ratio of base-emitter voltage of Q2 and the resistance value R1. With a supply voltage of 25 volts at the actuation keys S1-S3, the current through zener diode take values of about 2.2,6 and 22mA. Resistances R2 and R3 or a combination of R1, R2, R3 can be connected in place of R1 with S2-S3 so that through the zener diode constant current flow.
Wednesday, October 23, 2013
LM317 Amplifier Circuit
Tone Control Circuit Designed Using LM833
Tone Control Circuit Diagram
The ton control from this circuit is based on this operational amplifier from National Semiconductor and two RC filters ( low pass and high pass ) .Using the formula presented bellow we can modify the frequency of the tone control circuit - the cut off frequency of RC filters (low pass and high pass )lm833 tone control formula For the tone control circuit presented in this schematic the frequencies are : fL = 32 Hz, fLB = 320 Hz and fH =11 kHz, fHB = 1.1 kHz.
Basic Monostable Using with LM555
Basic Monostable Circuit diagram
A visitor can press a button to a model mechanism in motion, and the mechanism will automatically after a certain time. Another use of the circuit “the bounce” an important contribution to a digital IC – this application will be explained later in this article.
60 Watt Subwoofer Amplifer Circuit
Tuesday, October 22, 2013
Hall Effect Sensors Magnetic Field
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| Hall Effect Sensor Type UGN3503U |
One example is a sensor hall effect sensor UGN3503U. UGN3503U sensor will produce a voltage proportional to the strength of the magnetic field detected by the sensor UGN3503U. UGN3503 sensor has 3 pins, namely:
Hall Effect Sensor Block Diagram UGN3503U
Pin 1: VCC, supply voltage pin
Pin 2: GND, pin grounded
Pin 3: Vout, the output voltage pin.
Loop Control Automatic Reversing Circuit Diagram
Loop Control Automatic Reversing Circuit DiagramIt is not the purpose of this folio to accommodate a abundant account of the ICs acclimated by this circuit. If you appetite added advice on this accountable amuse accredit to the Flip-Flop Made With A LM556 Timer Chip folio in the assorted circuits area of this armpit and additionally the Visible Light Photo Detector Circuits.
*The ambit uses the basal phototransistor detector ambit to faculty the position of a alternation that is abutting or is in the abandoning loop.
*Track polarity abandoning is not covered by this folio and will accept to be bent by the user.
Please Read Afore Using These Ambit Ideas
The explanations for the circuits on these pages cannot achievement to awning every bearings on every layout. For this acumen be able to do some experimenting to get the after-effects you want. This is abnormally accurate of circuits such as the "Across Track Infrared Detection" circuits and any added ambit that relies on added than absolute cyberbanking inputs, such as switches.
If you use any of these ambit ideas, ask your genitalia supplier for a archetype of the manufacturers abstracts bedding for any apparatus that you accept not acclimated before. These bedding accommodate a abundance of abstracts and ambit architecture advice that no cyberbanking or book commodity could access and will save time and conceivably accident to the apparatus themselves. These abstracts bedding can generally be begin on the web armpit of the accessory manufacturers.
Although the circuits are anatomic the pages are not meant to be abounding descriptions of anniversary ambit but rather as guides for adapting them for use by others. If you accept any questions or comments amuse accelerate them to the email abode on the Ambit Index page.