TNY285DG

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The TNY285DG is a versatile and powerful offline switcher that acts as an AC-DC converter providing a host of useful features. It can be used in a range of applications from home appliances to professional medical equipment, ranging from mid- to high-power output systems. The device consists of a buck-boost converter, with an integrated reset/power sequence control and a diagnostics system. This diagram helps to explain its main components.

Functional Blocks

The TNY285DG’s functional blocks are interconnected to allow the device to function as an AC-DC converter. There are several key blocks to consider:

• Voltage Preregulator. This block provides a steady voltage into the device so it can have a regulated output. It is typically used to convert a low-voltage AC signal into a DC voltage.
• High Voltage Pulse Width Modulation (PWM) Buck-Boost. This is the block that is responsible for converting the input energy into a regulated (adjusted) output voltage. It is the heart of the device.
• Switch. The switch is used to control the flow of energy from the input to the output. It is also used to control the power sequencing of the device.
• Diagnostics System. The diagnostics system is used to detect faults and errors within the device, to ensure it is operating correctly.

Working Principle

The TNY285DG converts AC power into an adjustable DC voltage and current. It uses a High Voltage PWM Buck-Boost circuit and a switch. The input voltage is regulated using the voltage preregulator and then sent to the PWM Buck-Boost circuit. Within this circuit, the AC signal is manipulated using pulse width modulation to create an adjustable DC signal. This is then sent through the switch, which adjusts the power sequence and output voltage. The diagnostics system ensures that any faults or errors are detected and the device can be switched off, or voltage adjusted.

Application Field

The TNY285DG is a versatile device and can be used in a wide range of applications. It is commonly used in home appliances such as microwaves, washing machines, dishwashers, and refrigerators. It is also used in medical equipment such as imaging systems, surgical pumps and infusion machines. Finally, it is also used in communication and automotive applications, providing reliable AC-DC conversion.

The TNY285DG provides a powerful and reliable solution for AC-DC conversion. It is capable of handling a wide range of power outputs and its integrated reset/power sequencing control and diagnostics make it suitable for a variety of applications. The versatility and robustness of the device make it an excellent choice for any AC-DC conversion.

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