IC3600TSUD1B - Single-Phase Full-Bridge DC-DC Converter

SPECIFICATIONS:

Part No: IC3600TSUD1B
Manufacturer: General Electric
Series: Mark II
Input Voltage: 12V, 24V
Output Voltage: 5V to 400V
Efficiency: 85%
Switching Frequency: 20kHz
Maximum Power Output: 100W
Operating Temperature: -40°C to 85°C
Dimensions: 134.6mm x 130.3mm x 25.4mm
Weight: 0.45 kgs
Condition: New
Availability: In Stock
Country of Origin: USA

FUNCTIONAL DESCRIPTION:

IC3600TSUD1B is a Single-Phase Full-Bridge DC-DC Converter manufactured and designed by General Electric as part of the Mark II Series used in GE Speedtronic Control Systems. The high-frequency transformer in a single-phase full-bridge DC-DC converter is prone to saturation because of the asymmetry of circuit parameters. Transformer saturation will increase power consumption, accelerate the aging of winding insulation, and even damage power switches. The hardware topology optimization method is to improve the anti-DC bias ability by adjusting the structure and parameters of the hardware topology, which belongs to the active suppression method.

The DC blocking capacitor is usually connected in series with the primary winding of the transformer to prevent DC bias. However, the DC bias suppression ability of the DC-blocking capacitor is proportional to the capacity of the selected capacitor. When the capacity is small, the DC bias suppression ability is stronger, but the partial voltage on the capacitor is also larger, which will reduce the energy conversion efficiency of the inverter. When the capacity is large, it can only restrain the DC bias caused by the slowly changing volt-second product imbalance, but has little inhibitory effect on the DC bias caused by the fast-changing volt-second product imbalance. In addition, it is also feasible to introduce an air gap into the B-H circuit.

SYNCHRONOUS SAMPLING AND INTEGRATOR CIRCUIT:

• Signal Acquisition Circuit: The main function of this part is to sample the input voltage v1, where f1 = 20 kHz, V1 = 537 V. Considering that the main transformer in the arc welding inverter can be approximated to an ideal high-precision voltage sensor.

• Signal Pre-processing Circuit: The Zero Cross Detection Circuit (a) is used to convert v3 in the positive half-wave, and the duty cycle of the output voltage signal Vd1 is equal to the positive half-wave of v3.

• Integral Operation Circuit: The main function of this part is to calculate the integral value of the volt-second product error. Vd1 and Vd2 are the output voltages of the Zero Cross Detection Circuit (a) and (b), respectively.

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FREQUENTLY ASKED QUESTIONS:

What is a Single-Phase Full-Bridge DC-DC Converter?

A Single-Phase Full-Bridge DC-DC Converter is a power electronics device used to convert one DC voltage level to another using a bridge configuration of four switches (typically transistors). It provides efficient voltage conversion for various applications like power supplies for industrial systems, renewable energy systems.

What is the switching frequency of a Full-Bridge DC-DC Converter?

The switching frequency of a Full-Bridge DC-DC Converter typically ranges from 20 kHz to 100 kHz, depending on the specific design and application. Higher switching frequencies allow for smaller passive components (such as inductors and capacitors) and reduce the overall size of the converter.

What is the function of the capacitor in the Full-Bridge DC-DC Converter circuit?

Capacitors are used for voltage smoothing and filtering, helping to reduce the ripple in the output voltage. They store energy during the switching cycle and release it during load changes, ensuring a steady output voltage and reducing high-frequency noise.