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Aman bharti

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  1. In this project, a complete design and development procedure of a digital thermometer has been discussed. The algorithm used in this design is simple and easy to understand. The components used are limited and readily available in the market. Although the overall development of this project is lowcost and easy still the results are extraordinary. Let’s see how this design works. Arduino and LM35 based digital thermometers can be developed at home with very few components and instruments needed. Arduino UNO used in this design is a microcontroller which is responsible for data handling and processing for temperature calculation and display. Arduino UNO has digital I/O and Analog pins. In this case, we are using both. The next component is LM35 which is a temperature sensor and looks more like a simple BJT. LM35 is cheap as compared to most of the temperature sensors and yet offers a high level of accuracy even at extreme temperatures. LM35 can be used in both analog circuits and embedded systems since it offers analog voltages at the output. The circuit diagram described in this simulation video is simple and can be easily modified if needed. Click For Full Project Detail Simulation Video Testing Video Click for Coding and full project detail .
  2. This is modified circuit and also again tested You are right Sir But i also surprised to this circuit works without that resistor which you connect here. This is tested on breadboard with and without this resistor When i connect that that resistor then the output goes very low and circuit is less sensitive I also tested this circuit with 3-6v I never want to place any circuit with wrong information ----------------------------------------------------- This Inverter circuit is given from a trusted youtube channel on the robotics. He is showing in video on breadboard using this circuit. As name this is a simple inverter, so how this can powerful and regulated ???? Output Power is Also Depend on Transformer Ampere. In text also advised to use minimum of 1 A Transformer, not only 1 A Your corrected circuit is correct but my circuit is not wrong. One BD140 PNP transistor was also connected as here on that video.
  3.  This circuit is 100% working. This is simplified diagram

    No Any Direct Supply given on ic , Resistor is used

    volume control connection is right. Check again

    Which inverter circuit is wrong, tell me . 

    I will modify if any wrong  

    1. audioguru


      The volume control in your amplifier schematic is backwards. When it is turned down then instead of simply making a voltage divider with the signal, it shorts the input signal's high frequencies to ground but allows very low frequencies to be amplified.

    2. Aman bharti

      Aman bharti

      This diagram is only for instructional. These common matters are understand by reader.

  4. 100% working This diagram was given by one user that used already this circuit at home by implement from This diagram. No Direct supply given on ic. capacitor may only one issue Which inverter circuit is wrong , please tell me , I will checked and modifiy This diagram is given by one user that used already this project at home by implement from This diagram. Which inverter circuit is wrong , please tell me , I will check and modify
  5. 4558 ic Audio Power Amplifier Circuit Diagram circuitspedia.com This is circuit diagram of powerful audio amplifier. This circuit is given by Emmanuel. In this circuit one ic 4558 and 4 Power transistors are used with some discrete components. Use 20v-to 60v for operating this circuit. This is a single channel audio amplifier circuit. Use capacitor of minimum 50v value. Positive supply voltage is given at the middle pin of both transistor TIP41C and D718. Negative supply is given at middle terminal of D688and TI42C Transistor. R1 is the variable resistor potentiometer for volume control. This vol. control may be value of 50k to 100k. Use Big size speaker with this circuit. 4558 Audio Amplifier Circuit Diagram. In image of assembled kit there is no 5w resistor connected 100% Working for more Amplifier circuit click here
  6. This is an Automatic submersible Motor controller circuit using transistor • The Main Advantage Of this Project Is To All Three LEDs Are Glowing One by One. Only One LED is Glowing At One Level And Other Two Are in Off state. Click here for full detail For more circuits go to www.circuitspedia.com
  7. http://www.circuitspedia.com/blinking-led-flasher-circuit-diagram-with-555/ http://www.circuitspedia.com/simple-5-led-blinker-flasher-circuit-blinking-led-running-chaser-light/ 17 LED Sequencer/Flasher Circuit using 2 Counter ic 4017 Dual colour led flasher circuit For more circuit go to circuitspedia.com
  8. The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display. This ic is used for Dot and Bar Display. A single pin changes the display from a moving dot to a bar graph. Current drive to the LEDs is regulated and programmable, eliminating the need for resistors. This feature is one that allows operation of the whole system from less than 3V. From datasheet – The linear scaling of the output thresholds makes the device usable, for example, as a voltmeter. In the basic configuration it provides a ten step scale which is expandable to over 100 segments with other LM3914 ICs in series. The simplified LM3914 block diagram is to give the general idea of the circuit’s operation. A high input impedance buffer operates with signals from ground to 12V, and is protected against reverse and overvoltage signals. The signal is then applied to a series of 10 comparators; each of which is biased to a different comparison level by the resistor string. For more detail Click Here .
  9. Homemade MIC Amplifier Loudspeaker connection circuit You can connect condenser MIC with any amplifier circuit as given below diagram . This circuit will work very well with any type of Audio amplifier. Use only 3-5v for condenser MIC for best result. Audio amplifier circuit need 6-24v as per amplifier specification. Connect the positive terminal of mic with 22k resistor in series with positive supply and negative terminal of mic is directly connected to negative supply or ground. And enjoy this easy homemade MIC Loudspeaker. This Circuit works with any type of amplifier circuit. If you have no any audio amplifier then you can make an small amplifier very easily with LM386 ic. This is very popular amplifier ic and available on any electronic part store. For more Click here You can check for more simple circuit here circuitspedia.com
  10. 10A High Current Adjustable Voltage Regulator using LT1038 http://www.circuitspedia.com/10a-high-current-adjustable-voltage-regulator-circuit-diagram-using-lt1038/
  11. http://www.circuitspedia.com/transistor-as-switch-working-how-transistor-works/ For more detail click here A small Positive current required at the Base terminal for the turning on the transistor. By sending varying levels of current to the base, the amount of current flowing through the collector to emitter may be regulated. When we apply a small Positive supply at base , then Current between emitter and collector will passed and we say that transistor is turn on. A very small amount of current may be used to control a large amount of current, this property is known as amplifier . . A Diode with Parallel of relay coil in reverse connection is necessary for protection the transsistor. This must connected on both PNP and NPN
  12. When Light fall on LDR in DAY then the Resistance of LDR goes LOW And at this situation the maximum voltage Dropped With Negative supply (Ground) by cross through LDR and Voltage at the Base of transistor Q1 is Very LOW. When the Voltage goes to very LOW (Below0.7v) at BASE of Q1 then Transistor not get ON and no Power flows between COLLECTOR and EMITTER. Gate Voltagr of TRIAC is LOW. Now TRIAC Remain OFF Because It not TRIGGERED. At Night Time when no light incident on LDR then the internal Resistance of LDR comes HIGH and Very less amount of Power cross through LDR to ground , then the Voltage At base Terminal of transistor become increase (above 0.7v) and now transistor turn ON and current starts flow between Emitter and COLLECTOR. Therefor the Voltage increasing at GATE of TRIAC BT136. As voltage increase at GATE then TRIAC get Triggered . After Triac triggerd it Turn on and Passes the Power Supply between terminal 2 to terminal 1 and Bulb Switched On. For more sensitivity use 2 LDR with parallel. For more detail go to http://www.circuitspedia.com/automatic-light-controlled-bulb-switch-using-without-relay/ And also go to http://www.circuitspedia.com/category/light-operated-switch-circuit/
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