2SK2648 DATASHEET PDF

Tobar The atmega has the PWM option, so we will chop the tension until the intensity we want. Another characteristic unlike the bipolar transistor is that the mosfet need a tension on the gate bigger than 10 volts, we will use 12 from power source. An datasjeet about Atmega sandalone you have here. In this case we use a halogen lamp with 16W power at 12volts. The wiring diagram is below: This component let us to control the mosfet without a direct contact between atmega and lamp.

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JoJocage To adjust the PWM between 0 and we use a 20kohms potentiometer on analog 3 pin like in the image below: Because sometimes we want to dim the lamp, we try with an Atmega and anothers components to reduce the intensity with a potentiometer. That current is calculated with this formula: To protect the microcontroller we use a optocoupler which dahasheet a limit of switching current.

Such a project dayasheet detailed below: We use also a radiator from a PC power source. The program for this project is: Because the PWM of atmega has a switching frequency about Hz we have a switching time around 2 ms. The mount base GU 10 or GU 5. In this case we use a halogen lamp with 16W power at 12volts. Why we have calculate this value??? You can observe if we have a switching frequency higher the current is also higher. If we have a p channel mosfet the situation was reversed.

To adjust the PWM between 0 and we use a 20kohms potentiometer on analog 3 pin like in the image below:. To chop the tension we will use a transistor. Another characteristic unlike the bipolar transistor is that the mosfet need a tension on the gate bigger than 10 volts, we will use 12 from power datasjeet. At 16W power the lamp will absorb 1. This control daatsheet made by light and protect the atmega from eventual defect in the part of mosfet. Click here for instructions on how to enable JavaScript in your browser.

Of course the entire project can be made with an arduino, just mount the optocoupler on the pin 9. The wiring diagram is below: An article about Atmega sandalone you have here. The 10k resistor and the transistor of optocoupler make a voltage divider, so when the transistor is polarized like datadheet closed contact and mosfet is blocked lamp offwhen the transistor is blocked like a open contact the mosfet receive on gate 12 volts and it is polarized lamp on.

The atmega has the PWM option, 2s2k we will chop the tension until the intensity we want. Datasheet pdf. Equivalent February 26, admin 5. This component let us to control the mosfet without a direct contact between atmega and lamp.

Because we will chop the tension from the gate of mosfet can appear a higher current, value dependent from switching time and charge of the gate. If you like the article click datashee follow button from social media to stay in touch with us! That current is calculated with this formula:. August 21, admin Currently you have JavaScript disabled. Related Articles

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