Last month,in order to meet the customer requirements for the DC36V 320W power supply,our engineers team developed the model KP320-36,this switching power supply with active PFC,the most important is the small size,the width is only 72mm,the height is only 28mm.
In the demanding world of industrial electronics, communication systems, and specialized equipment, reliable and efficient power conversion is paramount. The KP320-36 AC-DC power supply module rises to this challenge, offering a compelling blend of high performance, robust protection, and remarkably compact design within a 320W power envelope.
Engineered for Performance and Density
Measuring a mere 168.1 x 72 x 28 mm (LxWxH) and weighing only 0.35kg, the KP320-36 sets a high standard for power density. This small footprint makes it ideal for space-constrained applications without compromising on capability. Its outstanding efficiency exceeding 93.5% (measured at 230VAC input under full load) translates directly into reduced energy consumption, lower operating temperatures, and enhanced overall system reliability. Complementing this efficiency is an excellent Power Factor (PF > 0.9 at 230VAC), achieved through its built-in active PFC (Power Factor Correction) function. This not only meets stringent regulatory requirements like EN61000-3-2 Class D but also minimizes harmonic distortion on the input line, contributing to cleaner mains power.
Robust Power Delivery and Stability
Delivering a regulated +36VDC output at up to 8.89A, the KP320-36 provides stable power for demanding loads. Its electrical performance is characterized by high precision:
Output Accuracy: ±2%
Line Regulation: ±1% (stability across input voltage variations)
Load Regulation: ±1% (stability across load changes from 0% to 100%)
Low Output Ripple & Noise: ≤360mVp-p (measured under strict conditions with external filtering).
The unit boasts a wide universal AC input range (180VAC to 264VAC) at 50/60Hz, ensuring operation in diverse power grid conditions. It features controlled inrush current (<60A at 230VAC cold start) and very low leakage current (<0.75mA), enhancing safety and reducing stress on input components.
Comprehensive Protection for Enhanced Reliability
Engineered for resilience, the KP320-36 incorporates a suite of advanced protection mechanisms, all featuring automatic recovery:
Overload Protection (150-170%): Operates in constant current mode followed by hiccup protection.
Output Short Circuit Protection: Hiccup mode protection.
Output Over-Voltage Protection (42-46V): Hiccup mode protection.
Input Under-Voltage Protection (Brown-Out) (140-175VAC): Automatic recovery.
Over-Temperature Protection: Safeguards against internal overheating.
This multi-layered "hiccup" mode approach minimizes stress during fault conditions, promoting longevity and system safety.
Built for Demanding Environments
Designed to withstand harsh operating conditions, the KP320-36 excels with an extended operating temperature range of -40°C to +60°C (10-90% RH, non-condensing). Its robust construction ensures reliable performance even under significant vibration (10-500Hz, 2G for 60min per axis). This makes it suitable for applications in industrial automation, telecommunications, test and measurement, outdoor equipment, and transportation systems. Its exceptional reliability is quantified by a calculated MTBF (Mean Time Between Failures) exceeding 250,000 hours at 25°C (per MIL-HDBK-217F standards).
Safety and Compliance Assurance
The KP320-36 meets rigorous international safety standards (GB4943, EN62368-1), featuring high isolation ratings:
Withstand Voltage: Input-Output: 3KVAC; Input-Frame Ground: 1.5KVAC; Output-Frame Ground: 0.5KVAC (1 minute).
Insulation Resistance: >50M Ohms at 500VDC (I/P-O/P, I/P-FG, O/P-FG).
It also complies with EMC standards EN55032 Class B (emissions) and EN61000-3-2 Class D (harmonics), ensuring minimal electromagnetic interference in sensitive environments (note: external output wiring with magnetic rings is required during EMC testing).
Conclusion
The KP320-36 power supply module stands out as a superior solution where space, efficiency, reliability, and robust protection are critical. Its compact size, exceptional efficiency exceeding 93.5%, active PFC, wide input voltage tolerance, and comprehensive suite of automatic-recovery protection features make it an excellent choice for powering next-generation industrial and commercial equipment designed to operate reliably in challenging conditions. Whether integrated into automation controllers, communication base stations, specialized instrumentation, or ruggedized computing platforms, the KP320-36 delivers dependable, high-quality 36VDC power with industry-leading performance metrics.
If you have any good ideas,please don't hestitate to contact me(E-mail:amy@gzkaihui.com, Whatsapp is +86 18824706559),our engineers team are vey glad to support you!
