ATQ Transformer Vertical switching power supply transformer Gallium nitride chargers
ATQ2714
ATQ2714 Flat High-Frequency Transformer, with a compact ATQ magnetic core structure; high window utilization, low leakage inductance, mainly for surface mount, and custom winding pins are supported.
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ATQ magnetic core can be designed with air gaps as needed, adjustable safety guard walls can be set, three-layer insulated wire wiring is supported, easily meeting the requirements for enhanced insulation and creepage clearance; the winding coupling degree is high, capable of suppressing voltage spikes, reducing EMI interference, and the full-load temperature rise performance is stable.
Product parameters
| Rated power | 50W | Cooling form | Dry type |
| Frequency characteristic | High frequency | Power phase number | Single phase |
| Cooling method | Oil-immersed self-cooling type | Voltage ratio | 220 |
| Moisture-proof method | Open type | Brand | CXWON |
| Winding form | Auto-coupling | Core shape | ATQ type |
| Overall structure | Vertical type | Efficiency (η) | 90% |
Main transformer models：
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Core advantages of ATQ transformer
1. The height of the ATQ magnetic core is low. At the power levels of 65-120W, compared with EE and ER magnetic cores of the same power, the overall height occupied by the machine is smaller.
2. It has excellent high-frequency performance. Using PC44 and PC95 low-loss ferrite materials, it can operate at high frequencies of 100-400kHz. The magnetic core has low loss and controllable temperature rise, which meets the requirements of high-frequency flyback fast charging design.
3. The frame comes with an anti-accident wall for safety standards, has ample window space, and is convenient for arranging three layers of insulated wires, easily meeting the requirements of enhanced insulation and creepage distance; supports multi-secondary and tap winding designs.
4. The magnetic core has a good coupling structure, combined with a reasonable winding process, the leakage inductance is controllable, reducing the switching voltage spikes, reducing the loss of the absorption circuit, improving the power conversion efficiency, and suppressing transformer whistling and EMI interference.
5. The frame is made of UL94-V0 flame-retardant material, mainly in DIP surface mount form, and also supports custom SMD chip version; the pin arrangement is flexible, and the number of turns and wire diameter can be customized.
6. The heat dissipation performance is good. The flat shape has a large heat dissipation area, and the heat is easy to dissipate.
ATQ transformer real-shot details：
Typical application scenarios
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FAQ
Q: What kind of core material is generally used for ATQ2714?
A: The mainstream choice is PC44 and PC95 low-loss manganese-zinc ferrite. PC44 is suitable for regular high-frequency applications, while PC95 is more suitable for 300-400kHz high-frequency GaN fast charging, as it reduces heat generation at high frequencies.
A: The mainstream choice is PC44 and PC95 low-loss manganese-zinc ferrite. PC44 is suitable for regular high-frequency applications, while PC95 is more suitable for 300-400kHz high-frequency GaN fast charging, as it reduces heat generation at high frequencies.
Q: Can ATQ2714 be made into a surface mount SMD version?
A: The standard is DIP plug-in frame, and the surface mount version is a customized product.
Q: What are the common reasons for ATQ's leakage inductance to be too large?
A: Inappropriate winding arrangement, too thick insulating tape, poor winding coupling; using the sandwich layer winding method can effectively reduce leakage inductance and improve peak and EMI.
Q: What are the common causes of excessive temperature rise of ATQ?
A: The actual output power exceeds the design specification, large leakage inductance and high loss, insufficient wire diameter and large copper loss, mismatch in magnetic material selection, and narrow internal heat dissipation space of the entire machine.
Q: What detection items are generally carried out for ATQ during production?
A: Inductance value, leakage inductance, DC resistance, high-voltage withstand test, pin conduction; additional vacuum impregnation and temperature reliability tests can be added as needed.
