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Minggu, 15 Mei 2011
by skemarangkaian
If so far you are still confused how the actual origin of the resonance between the capacitor and the inductor is in progress, then the simple circuit above will answer your confusion.
By understanding a simple electrical circuit above hopefully we will be able to understand the working principle of a series of more complicated and complex that uses the relationship as a series inductor and capacitors transmitter and receiver.
Note the picture above, when the switch SW1 is pressed and released back then obtained by the same signal as in the picture above signal. Initially when SW1 is connected to the voltage supply, the capacitor will make filling fast. Then when SW1 is released charge on the capacitor will be used by the inductor as the supply voltage. In accordance with the general nature of the inductor that the DC signal will be considered ordinary wire inductor such that current flowing quickly through the inductor and the charge on the capacitor decreases rapidly exhausted. Uniquely current that was flowing through the inductor and capacitor will fill the empty capacitor back through the other terminal (negative cycle). Charging kapasior place quickly, then inductor will burden the back so that emptying of cargo going back. That so happens repeatedly (resonance occurs between L and C) until the electrical charge had been used up by these two components in the form of power losses. Equations between regular wire inductor is the inductor with wire work as usual at the time of current flowing to him. Inductors But unlike ordinary wire when current flows to him and vice versa. So it will not happen short circuit if the inductor to get the supply voltage alternating current (AC). But in ordinary wire short circuit will still occur even if the voltage of alternating current.
From the above analysis we can conclude that the LC resonance occurs because one component part affected by the characteristics of other components. For frequencies generated depend on the value of L and C itself. The greater the value of both the frequency will be smaller and smaller the value of both the frequency value will be even greater.
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Sabtu, 14 Mei 2011
by skemarangkaian
Alcohol Gas Sensor MQ-3 is an alcohol sensor is suitable for detecting levels of alcohol directly, for example on our breath.
Alcohol Sensor MQ-3 has high sensitivity and fast response time. Alcohol Sensor MQ-3 series drivers for alcohol Sensor MQ-3 is very simple, only need 1 piece of variable resistors. Output of Sensor MQ-3 alcohol in the form of an analog voltage that is proportional to the alcohol content is received. The necessary interface is quite simple, can use the ADC that can respond to voltage 0 volt - 3.3 volt saja.Nilai mounted resistors must be differentiated for various types of gas concentration. So need to be calibrated to 0.4 mg / L (about 200ppm) concentrations of alcohol in the air and on the output resistance of about 200K (100K to 470K)
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| Alcohol Gas Sensor MQ-3 |
Featured Alcohol Gas Sensor MQ-3:
- Sensitivity to high alcohol and low on gasoline
- Fast response and high sensitivity
- Stable and durable
- 5VDC or AC voltage source
- Operating Temperature -10 70 degree C samapai
- Current consumption less than 750mW
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Component's,
Sensor
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General picture of Hall Effect Sensors Magnetic Field Sensors as Hall effect sensor is a sensor used to detect the magnetic field.
Hall Effect sensor will produce a voltage proportional to the magnetic field strength received by a Hall effect sensor tersebut.Sensor it only consists of a silicon layer and two electrodes on each side of the silicon. By the time without any influence of the magnetic field then the potential difference between the two electrodes is 0 Volt as an electric current flowing in the middle two electrodes. When there is a magnetic field affecting the sensor is the current that flows will turn close to / away from the side that is affected by magnetic fields. This results in a potential difference between the two electrodes of Hall effect sensors, where the potential difference is proportional to the magnetic field received by the hall effect sensor.
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| Hall Effect Sensor Type UGN3503U |
Hall Effect Sensor Type UGN3503U
One example is a sensor hall effect sensor UGN3503U. UGN3503U sensor will produce a voltage proportional to the strength of the magnetic field detected by the sensor UGN3503U. UGN3503 sensor has 3 pins, namely:
Hall Effect Sensor Block Diagram UGN3503U
Pin 1: VCC, supply voltage pin
Pin 2: GND, pin grounded
Pin 3: Vout, the output voltage pin.
In this sensor already built an amplifier that strengthens the signal from the sensor circuit and produce the output voltage in the middle of the supply voltage. In this sensor if it gets the influence of magnetic field polarity of the north pole it would result in a reduction in the output voltage on the contrary, if there is the influence of magnetic field polarity of the south pole it will result in an increase in the output voltage. This sensor can respond to changes in magnetic field strength from a static magnetic field strength and the strength of the magnetic field varies with frequency up to 20kHz.
UGN3503 hall effect sensor has a wide supply voltage is from 4.5V to 6V to the sensitivity of changes in magnetic field strength up to 23KHz frequency. The core of this system is the sensor UGN3503U. This sensor will produce output voltage 3V in the absence of magnetic field influence on the sensor. Tegagnan output is not strong enough so that it still needed an op amp is used to amplify the signal from the sensor changes UGN3503U.
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Sensor
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Electronic Component Temperature Sensor
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| Electronic Component Temperature Sensor |
Electronic components that are used for temperature sensors, among others: NTC, PTC, Thermostat, IC LM35 temperature sensor, temperature sensor IC LM335 etc. To create a series of simple electronics of the temperature sensor of the basic components of the temperature sensor, the component needs to connect to the transistors or Op-Amp as driving to the end of the circuit.
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Sensor
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Electronic Components As Light Sensor
Electronic components are included in the category of light sensors is LDR, Photo Transistor, Photo Diode, Infrared Receiver. The function of the electronic component is to detect the intensity of light received by the component. The light sensor is often used in electronic equipment such as on television, light a light switch, light intensity measuring instrument.
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| Electronic Components As Light Sensor |
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Rabu, 04 Mei 2011
by skemarangkaian
Electronic components are included in the category of light sensors are as follows:
- LDR
- Photo Transistor
- Photo Diode
- Infrared Receiver
The function of the electronic component is to detect the intensity of light received by the component. The light sensor is often used in electronic equipment such as on television, light a light switch, light intensity measuring instrument.
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Selasa, 26 April 2011
by skemarangkaian
Cheap electronics component for amplifier application, it is simple to be made for speaker active . The sound quality even this Mini Amplifier TDA2030 quite satisfactory for a portable audio system.
"The series of Mini Amplifier TDA 2030 "The series of mini amplifie can reproduce the power output of 14 Watt with 8 Ohm speaker load. The series of mini-amplifier can be supplied with ource voltage of 12 volts - 15 volts DC. more details, see the following series of pictures.
Daftar komponen
Resistor:
- R1: 150KΩ
- R2: 4.7KΩ
- R3: 100KΩ
- R4: 1Ω 1W
- RA/RB: 100KΩ
Capacitor
- C1: 1µF / 25V
- C2: 2.2µF / 25V
- C3: 100nF
- C4: 22µF / 25V
- C5: 100 µF / 25V
- C6: 220nF
- C7: 2200µF / 35V
IC / Dioda
- IC1: TDA2030 or TDA2030a
- D1/D2: IN4002
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Audio,
Component's,
ICs audio amplifier,
Power amplifier
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PIR movement sensor module (Passive Infra Red) motion detection sensor AMN12111 is the smallest of objects the size of its shape. PIR motion sensor module (Passive Infra Red) AMN12111 fresneal come equipped with a lens. PIR motion sensor module (Passive Infra Red) AMN12111 has advantages can be directly connected to the microcontroller or other actuator driver.
PIR movement sensor module (Passive Infra Red) AMN12111 has a sensitivity that is very sensitive to changes in motion around it. PIR movement sensor module (Passive Infra Red) AMN12111 very suitable when applied to security systems. The price of the PIR movement sensor module (Passive Infra Red) AMN12111 not quite expensive. readily available in the market. For those of you who want to make a motion detection sensor. PIR movement sensor module (Passive Infra Red) AMN12111 is much easier and more practical than you have to make a series of Infra Red with the Tx and Rx.
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Sensor
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Temperature and humidity sensors used are SHT75. This sensor is a chip that can measure temperature and humidity as well. The use of these sensors with consideration of its small size and reliability. The output of this sensor has the form of digital data in the chip because it has been there for a 14bit ADC.
Temperature measurement range between -40-123,8 º C and humidity between 0-100% Rh. Measurement accuracy reaches ± 0.3 per increase of 25 º C for temperature and ± 1.8% RH for humidity.
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| Temperature and humidity sensor |
The default measurement resolution of this sensor is 14 bits to 12 bits and temperature sensors for humidity sensors, can also use only 12 bit resolution and 8 bits.
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Sensor
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Minggu, 24 April 2011
by skemarangkaian
Elco testing small to use AVO meters. But to distinguish between the elco elco 20.000uF/50V 2200uF/50V size would be very difficult, perhaps this phenomenon that makes creative hands itch to make elco with two label values.
Scheme tool as follows, do not smile once, indeed simple. The cost to make it too cheap, not up to $ 1.
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| Elco tester circuit |
The workings of this tool based on the nature of the condenser, the condenser ability to store electrons / voltage. Since each condenser has the characteristic charging time and discharging time is different for each size and type dielektrika. Ideally, the larger size, the greater the time required for charging and discharging (charging and disposal charges).
How to use:
- Make sure the position of the switch (SW1) on the discharging position (position A).
- Connect / elco pairs that will be tested, then empty the contents briefly elco by pressing SW2 (approximately 1 to 3 seconds).
- Position the switch in the charging position (position B), the LED will light with a certain time (depending on the value elco). Hold in position B until the LED is not lit (elco is full).
- When the LED is not lit, immediately moved to the position of discharging position (A), the LED will light with a certain time (depending on the value elco tested). Hold in position A until the LED does not turn on again (fill elco is empty).
- The conclusion is quite simple, the larger the size elco, the longer the charging time and dischargingnya (old LED lights up). To calibrate it, readers can use the benchmark elco 10000uF size that can be justified. Only by logic alone writers think readers have understood.
If it is the process of charging and discharging too quickly, the reader can change the value of R1, the greater the value the longer the charging process and discharging.
Good luck and commanded me, the value of its components should not be deleted, do not be wrapped up neatly, keep the same cast in epoxy / cement.
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Jumat, 22 April 2011
by skemarangkaian
Automatic Day-Night Lamp wit LDR
Maybe it's a lot who know how to work this one series, but I wanted to share back to the beginner on this. In the existing lighting circuit automatic lights that use components LDR (Light Dependence Resistor).
The workings of LDR LDR is exposed to light if the layer of the resistance was weakened likewise if there is no light at all resistance enlarged. here could make friends like that, because its components are a little easy but we will use the 220V AC voltage of course you must be very careful. Rather than actually being burnt. The author asks to be careful for the beginner course.
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| Schematic LDR |
LDR components can be interconnected with a cable, so tools stay in the house but LDR is outside the home. It is recommended using qualified Relay no1 to avoid fire, because the relays are cheap to produce heat. Relay that cheap is not in use for high voltage. Travonya use the cheap, because this circuit does not require large currents. The function of Potensio 500KΩ to regulate Q1 & Q2 is on, if both the active transistor relay also participate actively.
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Lights
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Kamis, 21 April 2011
by skemarangkaian
Color Sensor TCS230 color sensor is a chip that works with the converting acceptance of a certain color of light emitted into the shape of frequency. TCS230 Color Sensor composed dri two main parts, namely a light-receiving section arranged in an array photodioda and Chaya koncerter this part to the frequency.
Basically the TCS230 Color Sensor is a light sensor which is equipped with light filters for RGB primary color (Red-Green-Blue) and light sensor without the filter with scale 8 bits for each of this part of the sensor.
Photodiode the TCS230 Color Sensor arrays arranged in 8 × 8 with the internal configuration of the photodiode. 16 photodiode for the light sensor with a red light filter. 16 photodiode for the light sensor with a green light filter. 16 photodiode for the light sensor with a blue light filter. And 16 photodiode for light sensor without a color filter. On the use of Color Sensor TCS230 we can choose the color sensor with a filter of what we want to set the configuration data S2 and S3.
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| Pin-Out TSC230 |
Photodiode the TCS230 Color Sensor will issue a magnitude comparable with current levels of primary color of light that happened to him. This current is then converted into pulses with a frequency proportional to the amount of current. TCS230 Color Sensor Output frequency can be made by adjusting the scale of the configuration data S0 and S1 of the selector pins S0 and S1 Color Sensor TCS230.
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Detect the presence of fire in the world of electronics can be done by detecting changes in temperature, the presence of UV ultraviolet rays and infrared light IR. Heat Sensor pyroelectric detectors Eltec E442-3 is a heat sensor (fire) that detect the presence of infrared ray IR, and therefore often called IR-EYE.
These sensors form of Lithium Tantalate pyroelectric parallel opposed dual element high gain detector with integrated analog signal processing. These sensors can detect heat changes from -40 to +70 degrees Celsius without change siginfikan of noise and sensitivity.
To use heat sensor pyroelectric detectors Eltec E442-3, it can take a kind of cone is covered with a fresnel lens to focus the direction of the infrared ray IR. Heat sensors then pyroelectric detectors Eltec E442-3 inserted into the cone is then connected to the microcontroller. Analog output value signals which when detects heat, the sensor will cause a drastic change in output voltage.
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Selasa, 19 April 2011
by skemarangkaian
Here are two transistors manufactured by Toshiba. 2SC5200 and 2SA1943 transistor pair has been widely applied or used in the amplifier power amplifier because the transistor has a large power, and also not too expensive than other large power transistors. This transistor has the advantage of High breakdown voltage: VCEO = 230 V (min), Suitable for use in 100-W high fidelity audio amplifier's output stage. For more information, please see datasheet below.
Maximum Ratings (Tc = 25°C)
Electrical Characteristics (Tc = 25°C)
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Rabu, 06 April 2011
by skemarangkaian
Already Know about the transistor above? transistor above is one of the transistors that are applied at the amplifier end audio amplifiers. Because the power output and good quality of this transistor is very popular with high-power amplifier makers.
Transistors on no other than is 2SC2922 and 2SA1216, transistor pair is already very well known as a reliable amplifier. With a price not too expensive and not too large transistor large is also very suitable. And this transistor has its own code for its quality, its code is like 5DY, 57P, 85Y, 92P, etc.. to see datsheet transistor can be seen below.
Maximum Voltage 180V
maximum collector current 17A
Total power output 200W
To more clearly and accurately datasheet can be found
here.
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Above is a new architecture of the transistor which is applied in high voltage vertical FET (HVVFET ™) to achieve high operating voltage and very high power packaging density. This approach offers many advantages to designers of power amplifiers.
High voltage solutions help designers to simplify the matching circuit discrete devices. Achieving high power through the device causing high voltage impedance level, allows the network to the appropriate circuit with fewer components smaller area. As a result, a series of matching not only the smaller, less expensive solutions, but offers higher reliability as well as there fewer parts with the potential to fail. This circuit is suitable also show less loss than a low impedance solution that has a higher transformation 50 ohm impedance ratio desired.
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