The inverter is a DC to AC transformer, and it is actually a process of conversion is a voltage inverter.
AC converter is the voltage of the grid into a stable 12V DC output, while the output of the inverter is the Adapter 12V DC voltage into a high voltage alternating current high frequency; the same two parts are used with more than the width modulation (PWM) technique. Its core is an integrated PWM controller, Adapter using UC3842, the inverter is used TL5001 chip. TL5001 operating voltage range of 3.6 ~ 40V, which features an internal error amplifier, a regulator, oscillators, with dead-controlled PWM generator, low-voltage protection circuit and short circuit protection circuit and so on.
Input interface part: There are three signal input section, 12V DC input VIN, work ENB enable voltage and current Panel control signal DIM. VIN provided by the Adapter, ENB voltage provided by the MCU on the motherboard, its value is 0 or 3V, when ENB = 0, the inverter does not work, and ENB = 3V, the inverter is in normal working condition; and the DIM voltage provided by the motherboard, which ranges between 0 ~ 5V, different DIM PWM controller values back to the feedback terminal of the inverter to the load current will be different, the smaller the value of DIM, the inverter output current greater.
Inverter
Inverter Atlas
Voltage startup circuit: ENB is high,
Output high voltage to light Panel backlight lamps.
PWM Controllers: has the following functions: internal voltage reference, an error amplifier, oscillator and PWM, overvoltage protection, undervoltage protection, short circuit protection, output transistors.
DC conversion: pulse and the MOS switch voltage conversion circuit consisting of the inductor, after the input MOS transistor push-pull amplifier as switching operation of the drive, so that the DC voltage of charge and discharge the inductor, so that the other end of the inductor can be obtained AC Voltage.
LC oscillator circuit and output: to ensure the 1600V voltage required to start the lamp and the lamp after starting the voltage down to 800V.
Output voltage feedback: When the load operation, the feedback voltage sampling, I play a stabilizing role in the inverter output voltage.
AC converter is the voltage of the grid into a stable 12V DC output, while the output of the inverter is the Adapter 12V DC voltage into a high voltage alternating current high frequency; the same two parts are used with more than the width modulation (PWM) technique. Its core is an integrated PWM controller, Adapter using UC3842, the inverter is used TL5001 chip. TL5001 operating voltage range of 3.6 ~ 40V, which features an internal error amplifier, a regulator, oscillators, with dead-controlled PWM generator, low-voltage protection circuit and short circuit protection circuit and so on.
Input interface part: There are three signal input section, 12V DC input VIN, work ENB enable voltage and current Panel control signal DIM. VIN provided by the Adapter, ENB voltage provided by the MCU on the motherboard, its value is 0 or 3V, when ENB = 0, the inverter does not work, and ENB = 3V, the inverter is in normal working condition; and the DIM voltage provided by the motherboard, which ranges between 0 ~ 5V, different DIM PWM controller values back to the feedback terminal of the inverter to the load current will be different, the smaller the value of DIM, the inverter output current greater.
Inverter
Inverter Atlas
Voltage startup circuit: ENB is high,
Output high voltage to light Panel backlight lamps.
PWM Controllers: has the following functions: internal voltage reference, an error amplifier, oscillator and PWM, overvoltage protection, undervoltage protection, short circuit protection, output transistors.
DC conversion: pulse and the MOS switch voltage conversion circuit consisting of the inductor, after the input MOS transistor push-pull amplifier as switching operation of the drive, so that the DC voltage of charge and discharge the inductor, so that the other end of the inductor can be obtained AC Voltage.
LC oscillator circuit and output: to ensure the 1600V voltage required to start the lamp and the lamp after starting the voltage down to 800V.
Output voltage feedback: When the load operation, the feedback voltage sampling, I play a stabilizing role in the inverter output voltage.
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