TRA 3-0519

Current - Output (Max):	333mA
Supplier Device Package:	--
Size / Dimension:	0.77" L x 0.30" W x 0.40" H (19.5mm x 7.6mm x 10.2mm)
Package / Case:	6-SIP Module, 4 Leads
Mounting Type:	Through Hole
Efficiency:	87%
Operating Temperature:	-40°C ~ 95°C
Features:	SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1kV
Power (Watts):	3W
Series:	TRA 3
Voltage - Output 4:	--
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	9V
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active

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DC-DC Converters - TRA 3-0519 Application Field and Working Principle

DC-DC converters are used for many different applications. Depending on the type of application, different types of DC-DC converter may be suitable. The TRA 3-0519 is an efficient two-quadrant AC/DC/AC bidirectional converter suitable for active power factor correction (PFC), battery charging, and DC motor control applications.The TRA 3-0519 is a single-stage solution designed to achieve high efficiency, good power-factor performance, and low input current distortion. It operates from a universal non-isolated AC or DC input voltage and produces a regulated DC output. The main features of the TRA 3-0519 are its input voltage range, high power density, and efficient power conversion capabilities. The TRA 3-0519 is designed to provide superior performance in a wide range of applications.The TRA 3-0519 is based on a two-quadrant AC/DC/AC converter architecture. The AC/DC/AC topology uses a pair of active switches in each leg and the switching of these two switches is synchronized with the input voltage. This allows the converter to operate bidirectionally and in isolation from the AC power source.The operation of the TRA 3-0519 is based on a control loop. The control loop contains two feedback algorithms, one for the main output voltage and one for the input current. The main output voltage control loop uses a feedback system to regulate the output voltage by controlling the duty cycle of the AC/DC/AC converter. The input current control loop utilizes a PI controller to control the current through the AC/DC/AC converter and ensure a unity power factor operation.The PI controller utilizes a measured input current, reference voltage Feedback, and error amplifier to control the output duty cycle of the AC/DC/AC converter. The duty cycle of the AC/DC/AC converter determines the output voltage of the TRA 3-0519, thus it is important to accurately control the duty cycle in order to reach the desired output voltage. The output voltage is adjustable from 2-45V and can be set via an external resistive voltage divider. The maximum output current is rated up to 6A for the TRA 3-0519. The operating efficiency can reach up to 98%. The converter is capable of providing high efficiency and power factor performance even at low input line disturbances.The TRA 3-0519 also offers the possibility of multi-phase operation, allowing for the realization of higher output powers. The production cost of the converter is also minimized thanks to its integrated features such as primary-side current sensing, small thermal footprint, and no external components required. In summary, the TRA 3-0519 is an efficient two-quadrant AC/DC/AC bidirectional converter suitable for active power factor correction (PFC), battery charging, and DC motor control applications. The converter is based on a two-quadrant AC/DC/AC architecture and enables efficient and accurate power conversion with good power-factor performance. It offers adjustable output voltage, high power density, low input current distortion, a wide operating input voltage range, and multi-phase operation. The TRA 3-0519 is a cost-effective solution for many power conversion applications.

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