Showing posts with label schematic. Show all posts
Showing posts with label schematic. Show all posts
Friday, December 27, 2013
Schematic Audio Amplifier with IC AN214
See this circuit below :

Datasheet IC AN214
Vcc = 6-18 V
Pout = 4,4W
RL = 4 Ohm
Ft = 50hz - 17Khz
Icco = 20 mA
Package = SIP2-9
Manufactered = MATSHUSHITA
Wednesday, December 25, 2013
Anti Log Converter Schematic Circuits
Anti-Log Converter Schematic CircuitsAnti-log or exponential bearing is artlessly a amount of rearranging the logarithmic circuitry. The ambit diagram beneath shows the chip of the log adapted to accomplish an exponential achievement from a beeline input.
The emitter of Q2 in admeasurement to the ascribe voltage is apprenticed by amplifier A1 in affiliation with transistor Q1. The beneficiary accepted of Q2 varies exponentially with the emitter-base voltage.
Monday, December 23, 2013
FM Radio Transmitter schematic with pcb
For those of you like / love to talk in the air can assemble this simple circuit that can be received by the radio receiver to within a few hundred feet. The voice that issues by this circuit at all clear without rustling. Can also be used to link communications over the air using this radio transmitter, provided that other person also had the same circuit.

This PCB design :

Description :
Resistor
R1__________________1K
R2__________________18K
R3__________________82K
R4__________________1K2
R5__________________5K6
R6__________________39K
R7__________________18K
R8__________________68K
R9__________________470R
R10_________________100R
R11_________________50K
XTal
Q1__________________ Crystal according to the desired frequency
Inductor
L1__________________10uH
Capacitor
C1__________________10uF
C2__________________30uF
C3__________________20uF
C4__________________47uF
Transistor
Tr1_________________2SB175
Tr2_________________2SB175
Tr3_________________2SB178
Antenna
X1-1________________10-20 meters
Connector
X2-1________________Ground
X2-2________________VCC 9-12 Volts DC
X3-1________________Input
X3-2________________Ground
Friday, December 20, 2013
LMD18200 Motor Controller Schematic
Using the LMD18200 3A H-Bridge designed by National Semiconductors for motion control applications can be designed a very simple motor controller electronic project . Ideal for driving DC and stepper motors; the LMD18200 accommodates peak output currents up to 6A. An innovative circuit which facilitates low-loss sensing of the output current has been implemented.
LMD18200 Motor Controller Schematic

This circuit controls the current through the motor by applying an average voltage equal to zero to the motor terminals for a fixed period of time, whenever the current through the motor exceeds the commanded current. This action causes the motor current to vary slightly about an externally controlled average level. The duration of the Off-period is adjusted by the resistor and capacitor combination of the LM555.
Using this motor driver circuit you can design a 24 DC motor that require a maximum current consumption of 3 amperes .
LMD18200 Motor Controller Schematic

Using this motor driver circuit you can design a 24 DC motor that require a maximum current consumption of 3 amperes .
Thursday, November 21, 2013
TBA611 amplifier schematic
This amplifier circuit requires voltage ranging from 4Volt to 12Volt, a relatively low voltage. And strong currents needed to obtain a good sound is not too big. This amplifier circuit has a power output or speakers 1W. The output is very small when compared with the voltage amplifiers high. To use it can be used in radio tuner or radio receiver. The series of schemes can be seen below.

Vcc = 4,5-15 V
Pout = 1 W
RL = 8 Ohm
Ft = 50-15 Khz
Icco = 10 mA
Package = TABS4-14
Manufactered = RFT
Monday, November 18, 2013
12V to 30V DC to DC Converter Schematic
12V to +/- 30V DC to DC Converter Circuit Diagram

This is a DC to DC converter for car power amplifier. 12V input generates +30V and -30V output for preamp or power amplifiers. Circuit uses SG3525 IC, Mosfets and switching power supply.
Friday, November 15, 2013
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 Synchronization A. Vertical in the tv series has the following functions a) bend / open beams of light (information) to the vertical direction. b) Synchronize files from a transmitter in the form of images with short time.
Tuesday, November 12, 2013
Schematic Audio Amplifier with IC AN374
This Schematic use IC AN374, this is mono amplifier and have output speaker 1 W with impedance 8 Ohm . Supply need 8Volt to 16 Volt , this Schematic you can use current Voltage 12 V. And better use the stabilizer with 7812 let the voltage stabil. The Effect will be on the sound so smooth.
See this Schematic below and see datasheet IC AN734 :

Datasheet IC AN374
Vcc = 8-16 V
Pout = 1 W
RL = 8 Ohm
Ft = 50hz - 17Khz
Icco = 12 mA
Package = SIP2-10
Manufactered = MATSUSHITA
Thursday, November 7, 2013
6V to 220V inverter schematic
Circuit schematic above is one of the voltage inverter circuit, starting from 6-Volt input on the DC current into 220-volt AC output. For maximum output power up to 30W only, and is also very small voltage current. Input voltage plus the entrance on the transistor Q2 to provide the voltage at the collector and then go on Circumference transformer L1 and enter the base. Emitter will be merged ddengan voltage supplied L2 min. And LED1 is useful as an indicator of whether or not an inverter works especially on the transistor Q2.

Part List :
R1 = 1K R
R2 = 220R
C1 = 10nF
C2 = 100nF
C3 = 47nF
C4 = 0,22uF 400V
Q1 = 2N5551
Q2 = C5198
LED1 use Green Led
Transformer instruction :

The above is figure from a place plastic for copper wire wrapped around, you can also use the marks that have been unused transformer. For the above number are :
1 : Place for copper wire wrapped,with a diameter of 12mm x 10mm.
2 : Hole to place an iron or ferrite rod , with diameter 10mm. 
3 : Copper wire that has been rolled.
4 : Ferrite or iron rods which are mounted on the hole.
To coil L1 as much as 70 times, L2 200 times, And L3 as much as 1000 times.
L1 wire diameter 1mm
L2 wire diameter 0.8mm
L3 wire diameter 0.4 mm
4 : Ferrite or iron rods which are mounted on the hole.
To coil L1 as much as 70 times, L2 200 times, And L3 as much as 1000 times.
L1 wire diameter 1mm
L2 wire diameter 0.8mm
L3 wire diameter 0.4 mm
Monday, November 4, 2013
Schematic Audio Amplifer with IC AN315
This Schematic Require voltage 9 - 18 Volt. Good voltage for this schematic is 12 V. This is Mono amplifier with output 5,5 Watt and impedance 8 Ohm. You can make this Circuit easily because i give simple and clear scheme.
See this Schematic and Datsheet IC AN315 :
![]() |
| Click to Enlarge |
Datasheet IC AN315
Vcc = 9-18 V
Pout = 5,5 W
RL = 8 Ohm
Ft = 30hz - 18Khz
Icco = 28 mA
Package = SIP2-11
Manufactered = MATSUSHITA
Thursday, October 31, 2013
Schematic Audio Power Amplifier with IC AN7120
This schematic use the IC AN7120 for main system power amplifier with support some other components. In this circuit have a good sound quality. Because output noise is very very minimal , not even be heard in the distance of 5 Cm from the sound. Description from this circuit , voltage minimum required 6 volt and maximum voltage 20 volt , you can choose voltage between it. Maximum output Power 15 Watt with impedance 4 Ohm.
See Schematic Power Amplifier below :
![]() |
| (Figure 1.0) Schematic Circuit Power Amplifier AN7120 |
Sunday, October 27, 2013
2 X 0 6W schematic audio amplifier
This schematic have require minimum voltage at 1Volt and maximum volotage at 9 Volt. Maximum output power 2 X 0.6W.

Part List:
Capacitor
C1 = 100uF
C2 = 220uF
C3 = 220uF
C4 = 220uF
C5 = 220uF
IC = ULN3782
Saturday, October 26, 2013
6 Watt stereo power amplifier schematic
Basiccally,this amplifier works with the IC, which is where ic is associated with several other components in the supply and use DC voltage, which corresponds to the needs of IC above course on the circuit schematic. For IC , stands intregated circuit used is ic LM379 which has a maximum 6 Watt stereo output. This IC manufactered by NS and with SDIP-14 package. While other components needed in the circuit schematic , you can see components of the list below.

Resistor
R1___________________2K
R2___________________2K
R3___________________33K
R4___________________33K
R5___________________1M
R6___________________1M
R7___________________10R 2W
R8___________________10R 2W
Capacitor
C1___________________4.7uF
C2___________________4.7uF
C3___________________470uF
C4___________________470uF
C5___________________470uF
C6___________________100n
C7___________________100n
IC
IC1___________________LM379
Thursday, October 24, 2013
Zener Diode Tester Schematic
Using electronic scheme below can be designed a zener diode tester using few electronic parts. Using this zener tester and a multimeter can be measured and determined with a high precision threshold voltage of a zener diode.Zener voltage can be read with a DC voltmeter connected in parallel with zener diode.
Zener Diode Tester Circuit Schematic Diagram

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.
Sunday, October 20, 2013
300W subwoofer amplifier schematic
This is an amplifier circuit that is formed from a transistor amplifier miraculous. This circuit is used in the speaker subwoofer with 300W maximum power on each side. To apply it, can be used in the room that is not too large, like the car. And the voltage needed between 25 to 42 Volt DC.This is schematic of 300W subwoofer amplifier

Tuesday, October 15, 2013
Schematic Audio Power Amplifier with IC TDA2612
This amplifier circuit based on IC TDA2612 produced by siemens , minimum voltage require for this circuit is 10 Volts and amximum voltage require 35 volts DC. Power output 25 watt with 4 ohm impedance.Frequncy response 20Hz to 20kHz. Quiescent current is 70 mA. This is a mono circuit amplifier. See circuit below :
You can use the circuit above at :
- Car
- Tuner
- Pre amp Head
- Pre amp Mic
- Personal Computer
- Portable media Player
- etc.
Some advantage of the circuit :
- Fairly high voltage
- Low noise sound output
- Easy to make
- Components are easy to find
Thursday, October 10, 2013
A3952S Stepper Motor Controller Schematic
Using the A3952S stepper motor controller designed by Allegro MicroSystems can be designed a very simple and useful motor driver circuit that can be used in many electronic applications . A3952S stepper motor controller is capable of continuous output currents up to 2 A and operating voltages range up to 50 V. Internal fixed off-time PWM current-control circuitry can be used to regulate the maximum load current to a desired value.
A3952S Stepper Motor Controller Schematic

The MODE terminal can be used to optimize the performance of the device in microstepping / sinusoidal stepper motor drive applications. When the average load current is increasing, slow-decay mode is used to limit the switching losses in the device and iron losses in the motor.
The thermal performance in applications with high load currents and/or high duty cycles can be improved by adding external diodes in parallel with the internal diodes. In internal PWM slow-decay applications, only the two top-side (flyback) diodes need be added. For internal fast-decay PWM, or external PHASE or ENABLE input PWM applications, all four external diodes should be added for maximum junction temperature reduction .
A3952S Stepper Motor Controller Schematic

The thermal performance in applications with high load currents and/or high duty cycles can be improved by adding external diodes in parallel with the internal diodes. In internal PWM slow-decay applications, only the two top-side (flyback) diodes need be added. For internal fast-decay PWM, or external PHASE or ENABLE input PWM applications, all four external diodes should be added for maximum junction temperature reduction .
Thursday, October 3, 2013
LM390 power amplifier schematic
Circuit schematic above is / include power amplifiers that have low power output. 1 Watt output power is only based on the IC , and ic used LM390 , manufactered by NS and ic packaged in DIP-14. For output impedance have 4 OHm. Requires a minimum voltage 4 Volt and Maximum voltage is only 9Volt.

Resistor
R1________33K
R2________510R
R3________510R
R4________2.7R
Capacitor
C1________100uF 16V
C2________100uF 16V
C3________10uF 16V
C4________220uF 35V
C5________10uF 16V
C6________100n
IC
IC1_______LM390
Saturday, September 28, 2013
2 X 0 6W schematic audio amplifier
This schematic have require minimum voltage at 1Volt and maximum volotage at 9 Volt. Maximum output power 2 X 0.6W.

Part List:
Capacitor
C1 = 100uF
C2 = 220uF
C3 = 220uF
C4 = 220uF
C5 = 220uF
IC = ULN3782
Sunday, September 22, 2013
Metal Detector Schematic Circuit Diagram
Metal Detector Schematic Circuit DiagramThe ambit declared actuality is that of a metal detector. The opera- tion of the ambit is based on superheterodyning assumption which is frequently acclimated in superhet receivers. The ambit utilises two RF oscillators. The frequencies of both oscillators are anchored at 5.5 MHz. The aboriginal RF oscillator comprises transistor T1 (BF 494) and a 5.5MHz bowl clarify frequently acclimated in TV sound-IF section. The additional oscillator is a Colpitt�s oscillator realised with the advice of transistor T3 (BF494) and inductor L1 (whose architecture capacity follow) shunted by trimmer capacitor VC1. These two oscillators� frequencies (say Fx and Fy) are alloyed in the mixer transistor T2 (another BF 494) and the aberration or the exhausted abundance (Fx-Fy) achievement from beneficiary of transistor T2 is affiliated to detector date absolute diodes D1 and D2 (both OA 79).
The achievement is a pulsating DC which is anesthetized through a low-pass clarify realised with the advice of a 10k resistor R12 and two 15nF capacitors C6 and C10. It is again anesthetized to AF amplifier IC1 (2822M) via aggregate ascendancy VR1 and the achievement is fed to an 8-ohm/1W speaker. The inductor L1 can be complete application 15 turns of 25SWG wire on a 10cm (4-inch) bore air-core above and again cementing it with careful varnish. For able operation of the ambit it is analytical that frequencies of both the oscillators are the aforementioned so as to access aught exhausted in the absence of any metal in the abreast around of the circuit.
The alignment of oscillator 2 (to bout oscillator 1 frequency) can be done with the advice of trimmer capacitor VC1. When the two frequencies are equal, the exhausted abundance is zero, i.e. exhausted frquency=Fx-Fy=0, and appropriately there is no complete from the loudspeaker. When chase braid L1 passes over metal, the metal changes its inductance, thereby alteration the additional oscillator�s frequency. So now Fx-Fy is not aught and the loudspeaker sounds. Appropriately one is able to ascertain attendance of metal
The achievement is a pulsating DC which is anesthetized through a low-pass clarify realised with the advice of a 10k resistor R12 and two 15nF capacitors C6 and C10. It is again anesthetized to AF amplifier IC1 (2822M) via aggregate ascendancy VR1 and the achievement is fed to an 8-ohm/1W speaker. The inductor L1 can be complete application 15 turns of 25SWG wire on a 10cm (4-inch) bore air-core above and again cementing it with careful varnish. For able operation of the ambit it is analytical that frequencies of both the oscillators are the aforementioned so as to access aught exhausted in the absence of any metal in the abreast around of the circuit.
The alignment of oscillator 2 (to bout oscillator 1 frequency) can be done with the advice of trimmer capacitor VC1. When the two frequencies are equal, the exhausted abundance is zero, i.e. exhausted frquency=Fx-Fy=0, and appropriately there is no complete from the loudspeaker. When chase braid L1 passes over metal, the metal changes its inductance, thereby alteration the additional oscillator�s frequency. So now Fx-Fy is not aught and the loudspeaker sounds. Appropriately one is able to ascertain attendance of metal
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