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  1. Aman bharti

    Siren Sound | Bird Sound | Tone generator using 555 timer

    Tone generator circuit using 555 timer Bird sound generator, Ambulance Siren Generator These are some circuit diagrams of the sound generators. Sounds are like Bird sound, Ambulance siren, Beep Horn, and other different types. Use 9 to 12v Dc supply and components value should be...
  2. Aman bharti

    sample and hold circuit

    Sample and hold circuit Definition and Introduction  Sample and hold circuit is an electronic circuit which makes the samples of input voltage signals and holds these samples signal for some very small time duration. Sample and hold circuit is basically is an analog to digital converter...
  3. Aman bharti

    Tone generator/Bird sound generator circuit

    Tone generator circuit using 555 timer Bird sound generator, Ambulance Siren Generator These are some circuit diagrams of the sound generators. Sounds are like Bird sound, Ambulance siren, Beep Horn, and other different types. Use 9 to 12v Dc supply and components value should be the same...
  4. Aman bharti

    how does capacitor block DC and pass AC

    why ac current passes through capacitor but dc can’t how capacitor block dc current Explanation 1 We try to understand using a discharged battery in the circuit. When switch on, the battery is starting to charge and increasing the voltage level of the battery and there is a flow of...
  5. Aman bharti

    What is comparator

    Comparator A comparator is a circuit that compares two input voltages or currents and gives output High or Low as per input signal. The Output is a digital form according to the input signal compared with the reference. Basically a comparator is used in electronics to compare the two Analog...
  6. Aman bharti

    ohm's law

    What is ohm’s law In the electrical field, Ohm’s law is a very important topic. This law is asked in almost all interviews and as basic fundamentals of electrical engineering for all who related to electrical engineering. This is a very important fundamental law that describes the Relation...
  7. Aman bharti

    Zener diode working

      Zener diode working Zener diode Zener diode is a type of diode which flow of current also in reverse bias and in applications it always connected in reverse bias and zener diode limit the voltage, this diode is used for regulating the voltage in any circuit. It always works in zener...
  8. Aman bharti

    pn junction diode

    Semiconductor P-N Junction Diode Working Principle Diode is the two terminal  polarised electronic semiconductor device . One terminal is Anode(-) and other is Cathode(+). The cathode is marked with the silver colour or colour band. This is the simplest semiconductor device but this is very...
  9. Aman bharti

    What is Impedance in circuit

      What is impedance                     (circuitspedia.com) Impedance (Z)  is similar to Resistance (R) . Impedance and Resistance both oppose the current in circuit. Both are almost the same thing , But resistance related to DC Circuit. Resistance oppose the steady electric current in DC...
  10. Aman bharti

    logic gates circuit

    LOGIC GATES Logic gates are the basic building elements of any digital systems or circuits. The name Logic gate is derived from the sense of the making decisions ability of such a device, and after making decisions it produce one output result. We  can say that Logic gates are the fundamental...
  11. Aman bharti

    logic gates operation

    LOGIC GATES Logic gates are the basic building elements of any digital systems or circuits. The name Logic gate is derived from the sense of the making decisions ability of such a device, and after making decisions it produce one output result. We  can say that Logic gates are the fundamental...
  12. Aman bharti

    Temperature sensor project With simulation LM35 and arduino

    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...
  13. Aman bharti

    How to make Audio power Amplifier Circuit

    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...
  14. Aman bharti

    Automatic water level controller for submersible pump without ic

     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. Below is a modified ckt that has advantage of Motor will Again...
  15. Aman bharti

    LED Flasher Chaser Circuit with or Without IC

      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...
  16. Aman bharti

    battery level indicator

    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...
  17. Aman bharti

    How to connect Condenser microphone with any amplifier

    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...
  18. Aman bharti

    LED Blinker/Flasher Circuit using bicolour led

    click here for full explanation
  19. Aman bharti

    Transistor basic connection for switching

    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...
  20. Aman bharti

    Automatic Light controlled 230v Lamp bulb ON OFF without relay

    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...
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