12V Motor DC Variable Speed Controller

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[English]
This is one series that can be used to regulate speed DC12V motor with PWM technique. Series Variable Speed ​​Motor DC Controller 12V uses a 555 timer IC as a PWM pulse generator to regulate the motor speed DC12 Volt. DC motor speed control process performed by adjusting thepotentiometer R1 lever which in principle is set High and Low pulse width of the PWM pulse. For more details can be seen from a series of Variable Speed ​​DC MotorController 12V follows.

Series Variable Speed ​​DC Motor Controller 12V above the power MOSFET drivers in the form of a IRFZ46N that directly associated with DC motors. Working voltage of this circuit can be adjusted according to needs-driven DC motor, this circuit can work from 3 to 18VDC.

Inverter 12vdc to 220vac 100 watt

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[English]
Converter / Inverter 12 VDC to 220VAC 100W MOSFET is a series that serves to convert the DC voltage 12V to 220V AC voltage with 100Watt power. Series Converter / Inverter 12 VDC to 220VAC 100W MOSFET amplifier uses a MOSFETIRF540 final. The heart of the series converter / inverter 12 VDC to 220VAC 100W MOSFET is IC CD4047 astable multivibrator. Working frequency converter / inverter 12 VDC to 220VAC 100W MOSFET is determined by the outputof the multivibrator IC CD4047 can be set using VR1.


Tranformotor used for the series converter / inverter 12 VDC to 220VAC 100WMOSFET can use 2-3A transformer with primary coil 0 and 220 V as output and 12VCT secondary coil 12V as input in the drive by the MOSFET T1 and T2 in series converter / Inverter 12 VDC to 220VAC 100W MOSFET this.

Inverter 12vdc to 220vac 500 watt

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[English]
Series Inverter 500 Watt 12VDC to 220VAC is made using a transistor. The heart of the circuit Inverter 12 VDC to 220VAC 500 Watt This is a configuration of 2 pieces of transistors Q1 and Q2 which form a series of Flip-Flop. The output of the flip-flop Q1and Q2 in the circuit Inverter 12VDC to 220VAC 500 Watt is then broken down foreach pulse to complement each other using a series compiled by Q3 and Q4. Outputwhich complement each other is then given to the driver transistors Q5 and Q6 formthe transistor 2SC1061. Series Inverter Power Inverter from 12VDC to 220VAC 500Watt This is a series of parallel transistors Q7 and Q8 are prepared and Q7x and Q8xthe form of power with a type 2N3055 transistor 10 pieces. drawing a complete rangeof circuit Inverter 12VDC to 220VAC 500 Watts can be seen as follows.

Step up part of the circuit Inverter 12VDC to 220VAC 500 Watt 12V CT uses 12Vtransformer in the secondary and primary 0 - 220V. Working frequency of the circuitInverter 12VDC to 220VAC 500 Watt is determined by the flip-flop which is set to 50Hz.

Charger Battery Alkaline

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[English]
Alkaline Battery Charger series is special used for alkaline battery charger. Alkaline Battery Charger With this series of alkaline batteries that have been drop (1.3 V) to the Rev back to 1.6 V. LEDs on the circuit this Alkaline Battery Charger will flash during charging process, and will be extinguished when the battery is full. The series also features Alkaline Battery Charger for 9V battery charger. VR 47 Ohm serves to regulate the battery charging current.

Alkaline Battery Charger series below utilizing each side beat AC signal from travo to perform the charging process, which is controlled using a 4 pieces set as the rectifier diodes. In charging battere with this series should often be controlled, because this circuit is not equipped with overcharge protection, especially for small-size battery.

Rain Detector

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[English]
Rain Detector Using 555 is a simple alarm that can be used to find out it was raining. Rain Detector Using In principle this is an astable multivibrator 555 which is prepared by IC555 with a sensor attached that can detect water. Astable multivibrator with the555 is set in the audio frequency with a frequency of 1 KHz. Using Rain Detectorcircuit 555 can be disupplay with voltage source that is free enough from 5-15 VDC. In the application circuit Rain Detector Using this 555 can be mounted motor, car or other object that we want to protect from rain.

Water sensor used in the circuit 555 Rain Detector Using this we can make yourself degan a PCB that we make the path as shown in the image above or as disclosed from the image above is by using aluminum foil taped to a board or boards that areplastic insulator . The important principle of this sensor is to conduct electrical current very well when the surface is exposed to water even a little.

Accumulator Charger

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[English]
This charger will charge any 12V lead acid battery including flooded, gel and AGM. It is fully automatic and will charge at a rate up to about 4A until the battery voltage reaches a preset point at which it will switch to a very low current float charge. If the battery voltage drops again the charger will begin charging until the voltage once again reaches the cut off point. In this way it can be left connected to a battery indefinitely to maintain full charge without causing damage. An LED indicates when the battery is fully charged. R2 will have to be adjusted to set the proper finish charge voltage. Flooded and gel batteries are generally charged to 13.8V. If you are cycling the battery (AGM or gel) then 14.5V to 14.9V is generally recommended by battery manufacturers.


To set up the charger, set the pot to midway, turn on the charger and then connect a battery to it's output. Monitor the charge with a voltmeter until the battery reaches the proper end voltage and then adjust the pot until the LED glows steadily. The charger has now been set. To charge multiple battery types you can mount the pot on the front of the case and have each position marked for the appropriate voltage. Q1 will need a heatsink. If the circuit is mounted in a case then a small fan might be necessary and can generally be powered right off the output of D1. T1 is a transformer with a primary voltage appropriate to your location (120V, 220V, etc.) and a secondary around 12V. Using a higher voltage secondary (16V-18V) will allow you to charge 16V batteries sometimes used in racing applications. If the circuit is powered off, the battery should be disconnected from it's output otherwise the circuit will drain the battery slowly.

6 Led Amplifier Audio Level Indicator

3 comments
[English]
This is one of many audio level indicator circuit. The different is this circuit should be connected to the output of amplifier while the other indicators connected before amplifier module. This circuit will show the real audio output by LED indicator level.


Notes:
# The output power indicated by each LED must be doubled when 4 Ohms loads are driven.
# The circuit can be adapted to suit less powerful amplifiers by reducing the number of LEDs and related voltage dividers.
# LEDs of any dimension can be used, but rectangular shaped devices will be more suitable to be compacted in bars or columns.
# For a stereo amplifier, two identical circuits are required.

Lamp Intensity Regulator

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[English]
Different levels of light intensity when the reading is different during sleep, for that reason this circuit is created. How it works is very simple, just by adjusting VR1 potensio with maximum power of the lamp used is 150 watt.





Infra Red Remote Tester

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[English]
This circuit is very effective to test remote is working or not, the remote that can be tested only remotely using infrared such as air conditioning, television, and others. It works is very simple circuit, when the infrared sensors receive signals from the pin 2 sensor will generate a voltage, this voltage will lead the PNP transistor so that the LED lights and disc piezo (BUZZER) will be active.

6 Band Graphic Equaliser Circuit

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[English]
This circuit is a 6 band equalizer which is similar to the equalizer in winamp but winamp has 10 bands, you can adjust the sound on low, medium and high use IC 741 Op-Amp. With this circuit you can control the frequency of the desired tone. Basically, the series consists of the main components of IC 741 that can work on different frequencies will be determined by the potentiometer setting.

Audio frequency spectrum covers 6 bands: 50Hz, 160Hz, 500Hz, 1.6kHz, 5kHz, 16kHz. All potentiometers are linear type 100kO. This circuit provides sufficient impetus for normal use. Supply voltage range (6V-12V) makes the circuit very flexible.