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Make a line follower robot can be done with two transistors. Line Follower Robot series is one of the two transistors contor robot line follower circuit is in Bagun with two NPN transistor and the motor driver as well as processing of sensor signals. In the circuit of line follower robot consists of two parts of the same, only different functions for the motor driver the right and left. Sensor circuit of line follower robot uses the LDR and LED. LDR sensor sensitivity can be set with the VR 10 is mounted in series with the LDR. For more details, see the following figure. Line Follower Robot series 2 Transistor The working principle of the motor driver circuit between the right and left together, when the LDR get the reflection of light from the LED LDR resistance will decrease and make the transistor saturation and motor gets supply and rotates so that the robot moves forward. So at the moment is not the case then the motor did not get a supply, for example, only one sensor is exposed ...

Components of the above is one component of ic which is applied as a reinforcement. Power amplifier used in an audio signal in order to become more powerful and can be heard via a tool that is the speaker. But in each set must have a voice amplifier, voltage, power quality is different. For the IC has the output power above 2 X 40 Watt with 8 Ohm output impedance. Supply voltage ranging from 18 Volt to 32 Volt. Part List Resistor R1_____1K R2_____1K R3_____22K R4_____22K R5_____1K2 R6_____100K R7_____560R R8_____1K R9_____1K R10____470R R11____4R7 R12____3K3 R13____3K3 R14____4R7 R15____470R R16____100R R17____100K R18____1K2 Capacitor C1_____470pF C2_____470pF C3_____4u7F C4_____4u7F C5_____82pF C6_____82pF C7_____47uF C8_____100uF C9_____10nF C10____39pF C11____100nF C12____47uF C13____47uF C14____100nF C15____39pF C16____10nF C17____100uF C18____47uF Intregated Circuit U1_____STK4773 , STK4793 , STK4803 , STK4813 , 4833 , 4843 , 4853 , 4863 , 4873 , 4893 , 4913. On every IC that I m...

Warning: Take care with transmitter circuits. It is illegal in most countries to operate radio transmitters without a license. Although only low power this circuit may be tuned to operate over the range 87-108MHz with a range of 20 or 30 metres. Circuit Diagram  Notes I have used a pair of BC548 transistors in this circuit. Although not strictly RF transistors, they still give good results. I have used an ECM Mic insert from Maplin Electronics, order code FS43W. It is a two terminal ECM, but ordinary dynamic mic inserts can also be used, simply omit the front 10k resistor. The coil L1 was again from Maplin, part no. UF68Y and consists of 7 turns on a quarter inch plastic former with a tuning slug. The tuning slug is adjusted to tune the transmitter. Actual range on my prototype tuned from 70MHz to around 120MHz. The aerial is a few inches of wire. Lengths of wire greater than 2 feet may damp oscillations and not allow the circuit to work. Although RF circuits are best constructed o...

This is Stereo Amplifier On this schematic amplifier circuit  use the ic AN7145L , but can use the following IC : AN7145M AN7145H AN7146M AN7146H You can use of all ic above. anthis circuit need suply voltage with dual voltage . Minimum voltage 6 Volt and maximum voltage 20 volt . Voltage just (-) and (+), but (-) can also ground. Maximum power output 2 X 20 watt with minimum impedance 4 ohm. Click image to view enlarge. You can operate this circuit with  plugging input to , PC or other media can give signal audio.

This circuit uses a Silcon Controlled Rectifier (SCR) as a latch switch. Once enabled it can only be turned off by pressing S2 or power is removed from the circuit. Latch Switch 2 Circuit Diagram Circuit Notes: The load is represented by the 1k resistor and orange LED, although the C106D can handle much larger loads. Once the On switch is pressed, the SCR receives a voltage on its gate terminal and goes into forward conduction and conducts current through its anode and cathode terminals. This current remains to flow even when the on switch is released, so the LED remains lit. The load can only be turned off by pressing the Reset switch which is a Push-to-Break non-latching push switch. Note that reset switch must be able to handle the full load currents and voltage.

This is a Simple 12 Volt / 2 A Switching Power Supply Circuit Diagram. The circuit 12 volt / 2 A switching power supply in the above scheme is not too complicated. At the output of this block provides a stable 12 V and maximum current 2A. Power supply units are quite compact and is suitable for debugging schemes, as well as a permanent resource for stationary devices, including power for the logic electronics for the home-made ​​CNC machine tools. 12 Volt / 2 A Switching Power Supply Circuit Diagram      Transformer is available in the free market and avoids the hassle of having to self-winding. The diode bridge BR 1 of any given voltage and current of 2A. All other elements in the high part of the circuit are designed by the same voltage, taking into account the mains. The scheme of 12 volt / 2 A switching power supply operates from the high voltage network, to be observed when mounting accuracy and caution when using. It is desirable to block the finished board to “pa...

Interfacing Seven Segment (c.c) Display In this tutorial i will show you how to interface S.S display with PIC16F887/877. For this we required 74hc573 latches, 74hc238 decoder, and 74ls48 bcd2dec converter. Latches are used to enable/disable the S.S, 74hc234 a 3x8 decoder selects the appropriate latch to be enable/disable. 74ls48 just converts the bcd input to respective decimal output to operate S.S properly.  Now lets write a small program that display the digital manual input at S.S, enter by the user; by using 8-way dip switch. Code:    void main() {      int x,y,i,j;      trisc=0;      portc=0;      trisd=255;      //all bits for input  ///////////////// comment 4 pic16f877/////////      ansel=0;      anselh=0;           c1on_bit=0;      c2on_bit=0; ///////////...

Build a Voltage-To-Frequency Converter Circuit Diagram 2 . Using a Burr-Brown VFC 32 IC, this voltage-to-frequency converter uses few components. The circuit values are shown in the figure. This charge-balanced V/F converter uses a VFC32 or a VFC320 IC.  The positive charge from the 1-mA balances the negative charge from the input. V/F converter waveforms are shown in Fig. 100-l(b).  Voltage-To-Frequency Converter Circuit Diagram 2

TA8233H Circuit Diagram Circuit diagram for 30 Watt x 2 CH AUDIO POWER AMPLIFER

The above is a simple amplifier circuit also has a minimal power output. By using only a few components and a single IC as the basis for the strengthening of the amplifier, this circuit has a power output of not more than 2.5 W and impedance or RL 8. Requires a minimum voltage of this amplifier is around 6V and 26V maximum voltage, the voltage must be DC or already rectified and filtered. Part List : R1 = 1R C1 = 0.1uF C2 = 100uF C3 = 0.1uF C4 = 5uF C5 = 500uF C6 = 0.1uF IC = ULN2280B , ULN2281B , ULN3784B.

These amplifiers using IC KA2202 and KA2207, which has a power output of 2.3 Watt berimpedansi 4 ohms. Minimum supply voltage and maximum 5Volt 20Volt. See schematics and component list below. Part List  R1 = 100K R2 = 56R R3 = 56R R4 = 1R Use 1/4 Watt resistor C1 = 100uF C2 = 100uF C4 = 100uF C5 = 470uF C6 = 100nF C7 = 470pF C8 = 2,2nF C9 = 100uF U1 = KA2202 , KA2207