Showing posts with label ic. Show all posts
Showing posts with label ic. Show all posts
Monday, November 17, 2014
LM3914 IC based on Simple Battery Tester
This LM3914 IC based on Simple Battery Tester is very simple to explain:
Once the test switch is pushed, the Car battery voltage is supply into a high impedance voltage divider. His function is to divide 12V to 1, 25V (or lower values to reduced values). This solution is much better than enabling the internal voltage regulator set the 12V sample voltage to be feed into the internal voltage divider simply because it cannot regulate 12V if the voltage falls lower (linear regulators only step down). Simply wiring with no change, the regulator provides secure 1, 25V which can be fed into the precision internal resistor cascade to create sample voltages to the internal comparators.
In any case the default establishing let you to determine voltages between 8 and 12V however you can measure even from 0V to 12V setting the offset trimmer to 0 (but i believe that below 9 volt your vehicle would not start). There is a smoothing capacitor (4700uF 16V) it is used to adsorb EMF noises produced from the ignition coil if youre testing the battery during the engine working. Diesel engines would not need it, but i am not sure. If you want more a level graph rather than a bar graph simply disconnect pin 9 on the IC (MODE) from power. The calculations are usually simple (default).
Sunday, November 16, 2014
Car audio amplifier using TDA2003 IC
Easy low power car audio amplifier circuit on TDA 2003. The circuit is Easy to construct. TDA2003 is an integrated radio amplifier from ST Micro electronics that like short circuit protection for all pins, thermal over low harmonic distortion, low cross over distortion etc. In the circuit given here TDA2003 is wired as a mono amplifier operating from a 12V .
Resistors R2 and R3 forms a feedback network that sets the amplifiers gain. C7 input DC de-coupling capacitor and C5 couples the speaker to the amplifiers output. C4 } for improving the ripple rejection C1 and C2 are employed for power filtering. C3 and R1 are used for setting the frequency cut-off. Network comprising of C6 and R4 for frequency stabilization and oscillation.
Resistors R2 and R3 forms a feedback network that sets the amplifiers gain. C7 input DC de-coupling capacitor and C5 couples the speaker to the amplifiers output. C4 } for improving the ripple rejection C1 and C2 are employed for power filtering. C3 and R1 are used for setting the frequency cut-off. Network comprising of C6 and R4 for frequency stabilization and oscillation.
Notes.
- Assemble the circuit on a good quality PCB.
- Heat sinks are necessary for both ICs.
- The circuit can be operated from 12V DC.
- S1 is the ON/OFF switch.
Sunday, November 2, 2014
BURGLAR ALARM USING IC TIMER 555 556 ELECTRONIC DIAGRAM
BURGLAR ALARM USING IC TIMER 555/556 ELECTRONIC DIAGRAM
circuit diagram of burglar alarm using IC timer 555/556 is functioned as an alarm to prevent thief entering your house. The alarm would produce loud sound when a thin wire connecting resistor R1 with IC pin no 4 is broken. Thin fiber is used as the wire. The thinner the wire, the more responsive the alarm. This circuit needs 5-15V power supply, buzzer is used as a speaker. Here is the circuit schematic :
Parts list :
- Resistor R1 : 10k
- Resistor R2 : 68k
- Resistor R3 : 1k
- Polar capacitor C1 : 1uF/15 B
- Capacitor C2-C3 : 0.01uF
- IC Timer : NE555
Friday, October 24, 2014
FM Radio Receiver Circuit with IC TDA 7012T
FM Radio Receiver IC TDA 7012T is very simple, but it has an FM radio receiver sensitivity and good selectivity. Single Chip FM Receifer cool name of IC TDA7012T 7012T TDA is to build an FM receiver requires a few additional components.
Feature contained in FM receiver IC TDA 7012T is quite tempting to an FM receiver. Among features an FM receiver TDA 7012T is a low-voltage applications micro affability arrangement (MTS), Frequency Loked Loop (FLL) to 76 KHz range and selectivity of FM receiver with RC Filter. In an article by FM Radio Receiver IC TDA 7012T can be seen in the FM receiver circuit which can be made.
FM Radio Receiver with IC TDA 7012T
From the picture above components to make the FM Radio Receiver IC TDA 7012T as follows:
R1 = 8kΩ2
R2 = 10kΩ
R3 = 390Ω
C1, C3 = 10nF
C2, C6, C9, C16 = 100nF
C4 = 33pF
C5 = 25pF trimmer
C7, C10 = 1nF5
C8 = 820pF C11 = 1NF
C12 = 68pF
C13 = 220pF
C14 = 47μF 10V
C15 = 3nF3
L1 = 36nH
L2 = 1μH,
IC1 = TDA7021T
Tuesday, September 2, 2014
Universal Power Supply Circuit with IC LM317
This circuit is universal power supply , you can use this circuit to supply . On the IC you can adjustable regulator provides short circuit protection and automatic voltage adjust . The input voltage to the circuit regulator is supplyed by AC 220 V / 110 V and down voltage by transformator then rectified by bridge diode . And output voltage is clear and stabilized .
Wiring a second LM317 , U2 , in parallel with U1 is a quick and clean way to increase the current limiting threshold to 3A without sacrifing short-circuit protection.When more than 3A is required , the regulator module can be used to drive the base of one or more pass-transisotrs.
DC motor driver with H Bridge IC L293D
Making a DC motor driver with H-Bridge technique can use IC L293D as in the article "DC Motor Driver H-Bridge L293 (2 Motor DC)"is. DC motor driver L293D can be used to control the DC motor 2 pieces at once. DC Motor Driver L293D can be used to control a DC motor continuously or with a PWM technique. Dc motor driver circuit in the article "DC Motor Driver H-Bridge L293 (2 Motor DC)" only use IC L293D only. For more details see the following figure.
Working system of DC motor driver L293D is to provide control signals in the form of logic or pulse to the input lines 1A - 1B for DC motor control M1 and the input 2A - 2B for the control of DC motor M2 with the following conditions:
Input A Input B Motor DC0 0 Motor silent
1 0 motor rotates counterclockwise
0 1 Motor berputer clockwise
1 1 Motor silent
Description: Enable Input given a logic 1 to obtain such data in the table above.
Friday, August 29, 2014
IC LA78040 schematic for vertical deflection
Synchronization circuit to make the signals useful in the process of scanning of the transmitter and sent to the Vertical and Horizontal. To be able to produce images on the picture tube phosphor surface is the same as what was sent, then the necessary adjustments to correct with ualsan which has decomposed on the sender and receiver on the review must be made again, and this is called synchronization.
 |
| Click to view larger |
On TV transmitter switching pulses that have made the same frequency as in the reviewing, and by using the switching pulse is then mulapenguilasan point getter on the tube and picture tube can be adjusted simultaneously.
At the transmitter, each end of the line reviews one pulse is emitted horizontally, and also at each end of the line vertical review (this is called a field review), another pulse is emitted. At the receiver using switching pulses had the time of the beginning (start) review can be arranged horizontally and vertically. Switching pulses are called the horizontal synchronizing signal and vertical synchronization.Vertical SynchronizationA. Vertical in the tv series has the following functionsa) bend / open beams of light (information) to the vertical direction.b) Synchronize files from a transmitter in the form of images with short time.
Schematic Audio Power Amplifier with IC AN7118S
*notif : this circuit is stereo power amplifier
Although the schematic power amplifier with IC AN7118S is difficult for lees understood making of PCB track . But once tried to design on PCB is not so difficult. Because the actual components close together and easy to design it. This Circuit need minimum voltage 1 volt and maximum voltage 3 volt. It is a low voltage amplifier with power output 2 x 35 m Watt .
Schematic circuit below :
 | ||
| Click to Enlarge |
Components Required :
Resistor / Condensator / Capacitor : 4,7Ohm (2x) , 0,01 uF (2x) , 47uf (2x) , 68 pf (2x) , 1uF (2x) , 22uF (2x) , 220 uF (1x) , 470uf (2x). Condensator / capacitor voltage use 16 volt. Only Condensator on output speaker use voltage 25 volt.
Tuesday, August 26, 2014
FM Radio Receiver Circuit with IC TDA 7012T
TDA 7012T FM Radio Receiver
FM Radio Receiver IC TDA 7012T is very simple, but it has an FM radio receiver sensitivity and good selectivity. Single Chip FM Receifer cool name of IC TDA7012T 7012T TDA is to build an FM receiver requires a few additional components.
Feature contained in FM receiver IC TDA 7012T is quite tempting to an FM receiver. Among features an FM receiver TDA 7012T is a low-voltage applications micro affability arrangement (MTS), Frequency Loked Loop (FLL) to 76 KHz range and selectivity of FM receiver with RC Filter. In an article by FM Radio Receiver IC TDA 7012T can be seen in the FM receiver circuit which can be made.FM Radio Receiver with IC TDA 7012T
From the picture above components to make the FM Radio Receiver IC TDA 7012T as follows:
R1 = 8kΩ2
R2 = 10kΩ
R3 = 390Ω
C1, C3 = 10nF
C2, C6, C9, C16 = 100nF
C4 = 33pF
C5 = 25pF trimmer
C7, C10 = 1nF5
C8 = 820pF C11 = 1NF
C12 = 68pF
C13 = 220pF
C14 = 47μF 10V
C15 = 3nF3
L1 = 36nH
L2 = 1μH,
IC1 = TDA7021T
Hopefully useful and become an idea in the manufacture of Mini FM Receiver with IC TDA 7012T
Monday, August 18, 2014
Vertical IC PIN OUT DATA
Vertical Vin = input (non-inverted), Vout = Vertical output, VfB = Vertical feedback (inverted inpput)
Vcc to pump-up can be traced through the diode PUM-up and pump up Elco Capacitor
VfB = or to Vin2
= Gnd or Vcc (-)
![Vertical]()
Vertical IC PIN-OUT DATA
AN5521 Vin = 4, Vout = 2, Vcc = 7, Gnd = 1, VfB =
AN5522 Vin = 7, Vout = 5, Vcc = 2, Gnd = 4, VfB = 1
AN5539 Vin = 4, Vout = 2, Vcc = 6, Gnd = 1, VfB = 5
AN15525 Vin = 7, Vout = 5, Vcc = 2, Gnd = 4, VfB = 1
LA7832 Vin = 4, Vout +2, Vcc = 6, Gnd = 1, VfB = 5
LA7835 = 2 Vin, Vout = 11, Vcc1 = 1, Vcc2 = 7,
LA7837 = 2 Vin, Vout = 12, Vcc1 = 1, Vcc2 = 8, Gnd = 11, VfB = 7
LA7838 = LA7837
LA7840 Vin = 4, Vout = 2, Vcc = 6, Gnd = 1, VfB = 5
LA7841 = LA7840
LA7845 = LA7840
LA7846 = 5 Vin, Vout = 3, Vcc = 7, Gnd = 2, VfB = 6
LA7848 Vina = 5, VinB = 6, Vout = 3, Vcc (+) = 7, Vcc (-) = 2
LA7876 Vina = 5, VinB = 6 Vcc (+) = 7, Vcc (-) = 2
STV9302 = see AN5522
STV9379 = See AN5522
TA8403 Vin = 4, Vout = 2, Vcc = 6, Vcc = 6,
TA8445 Vin = 2, Vout = 11, Vcc1 = 1 (9v), Vcc2 = 7 (26v), Gnd = 10, 50/60 =
TDA1771 Vin = 3, Vout = 1, Vcc = 9. Gnd = 5
TDA4865 Vin = 6, Vout = 5, Vcc = 1, Gnd = 4, VfB = 2
TDA8175 Vin = 7, Vout = 5, Vcc = 2, VfB = 1
TDA3653 Vin1 = 1, Vin2 = 3, Vcc1 = 9, Vcc2 = 6, Vou = 5, Gnd = 4
TDA8350 Vina = 1, VinB = 2, VoutA = 10, VoutB =, Vcc1 = 3, Vcc2 = 9, Ewin = 12, Ewout = 11
See tda8357 TDA8351 =
See TDA8357 TDA8356 =
TDA8357 Vina = 1, VinB = 2, VoutA = 7, VoutB = 4, Vcc1 = 3 (12v), Vcc2 = 6 (45V), Gnd = 5
TDA8358 Vina = 1, VinB = 2, Vcc1 = 3 (12v), Vcc2 = 9 (25V), VoutA = 4, VoutB = 10, Gnd = 6.7, Ewin = 5, Ewout = 8
TDA9302 = see LA78040
Read More..
Vcc to pump-up can be traced through the diode PUM-up and pump up Elco Capacitor
VfB = or to Vin2
= Gnd or Vcc (-)
Vertical IC PIN-OUT DATA
AN5521 Vin = 4, Vout = 2, Vcc = 7, Gnd = 1, VfB =
AN5522 Vin = 7, Vout = 5, Vcc = 2, Gnd = 4, VfB = 1
AN5539 Vin = 4, Vout = 2, Vcc = 6, Gnd = 1, VfB = 5
AN15525 Vin = 7, Vout = 5, Vcc = 2, Gnd = 4, VfB = 1
LA7832 Vin = 4, Vout +2, Vcc = 6, Gnd = 1, VfB = 5
LA7835 = 2 Vin, Vout = 11, Vcc1 = 1, Vcc2 = 7,
LA7837 = 2 Vin, Vout = 12, Vcc1 = 1, Vcc2 = 8, Gnd = 11, VfB = 7
LA7838 = LA7837
LA7840 Vin = 4, Vout = 2, Vcc = 6, Gnd = 1, VfB = 5
LA7841 = LA7840
LA7845 = LA7840
LA7846 = 5 Vin, Vout = 3, Vcc = 7, Gnd = 2, VfB = 6
LA7848 Vina = 5, VinB = 6, Vout = 3, Vcc (+) = 7, Vcc (-) = 2
LA7876 Vina = 5, VinB = 6 Vcc (+) = 7, Vcc (-) = 2
STV9302 = see AN5522
STV9379 = See AN5522
TA8403 Vin = 4, Vout = 2, Vcc = 6, Vcc = 6,
TA8445 Vin = 2, Vout = 11, Vcc1 = 1 (9v), Vcc2 = 7 (26v), Gnd = 10, 50/60 =
TDA1771 Vin = 3, Vout = 1, Vcc = 9. Gnd = 5
TDA4865 Vin = 6, Vout = 5, Vcc = 1, Gnd = 4, VfB = 2
TDA8175 Vin = 7, Vout = 5, Vcc = 2, VfB = 1
TDA3653 Vin1 = 1, Vin2 = 3, Vcc1 = 9, Vcc2 = 6, Vou = 5, Gnd = 4
TDA8350 Vina = 1, VinB = 2, VoutA = 10, VoutB =, Vcc1 = 3, Vcc2 = 9, Ewin = 12, Ewout = 11
See tda8357 TDA8351 =
See TDA8357 TDA8356 =
TDA8357 Vina = 1, VinB = 2, VoutA = 7, VoutB = 4, Vcc1 = 3 (12v), Vcc2 = 6 (45V), Gnd = 5
TDA8358 Vina = 1, VinB = 2, Vcc1 = 3 (12v), Vcc2 = 9 (25V), VoutA = 4, VoutB = 10, Gnd = 6.7, Ewin = 5, Ewout = 8
TDA9302 = see LA78040
Wednesday, August 13, 2014
Audio amplifier with IC AN7522 AN7523 and TDA2616
The series of amplifiers that are used on the television audio, amplifier used amplifier ICs, including the IC:
• AN7523• AN7522
• TDA2616
Third series of the function with the same system, namely BTL (Bridge Transformer Less). By using such configuration we get several advantages, namely no use coupling capacitors or coupling transformers.
Block diagram of circuit in the IC AN7522, AN7523 and TDA2616 as in the image below :
 |
| Schematic AN7522 |
 |
| AN7523 amplifier schematic |
 |
| Schematic TDA2616 |
Subscribe to:
Posts (Atom)
