L6R18-120

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

AC DC desktop and wall adapters are used to provide portable power to electronic devices such as laptops, tablets, and phones. The L6R18-120 is a versatile AC DC adapter that can be used in a variety of applications. It features adjustable output voltage from 24V to 28V and a maximum output power of 120W.

Power circuit

The L6R18-120’s power circuit is composed of a power input section, control circuit, power MOSFET switching circuit, and other components. The power input section consists of a power cable, a primary transform, and a bridge rectifier. The primary transform converts the input AC power to a voltage suitable for use in the control circuit. The bridge rectifier rectifies the incoming voltage and supplies a DC voltage to the control circuit.

Control circuit

The control circuit uses a microprocessor, an AB-switch for voltage selection, and feedback resistors. The microprocessor controls the AB-switch to select the output voltage. The feedback resistors provide feedback to the microprocessor so it can adjust the output voltage to the correct level. When the output voltage is set correctly, the L6R18-120 will enter standby mode.

Power MOSFET switching circuit

The power MOSFET switching circuit consists of a power MOSFET and an oscillator circuit for PWM control. The power MOSFET takes the rectified DC voltage from the control circuit and modulates it with the PWM signal from the oscillator circuit. This modulated DC voltage is then used to drive the load.

Other components

The L6R18-120 also features other components such as an LED to indicate when the device is in operation, a temperature sensor, an electromagnetic compatibility filter, overvoltage protection, and a fuse for short circuit protection.

Application fields and working principle

The L6R18-120 is designed to provide a regulated DC voltage output for a variety of different applications. It is suitable for powering electronic devices such as laptops, tablets, and phones. It is also suitable for powering LED lights, CCTV cameras, and other electronic devices.

The L6R18-120 operates by converting the input AC voltage into a regulated DC voltage. It does this by rectifying the AC voltage and using the rectified DC voltage to power a control circuit. The control circuit then modulates the rectified DC voltage with a PWM signal from an oscillator circuit to produce a regulated DC voltage output. This regulated DC voltage is used to power the load.

The specific data is subject to PDF, and the above content is for reference