Vincotech EVL31-050 | High-Efficiency Fast Switching IGBT Module for Demanding Power Conversion
The Vincotech EVL31-050 is a sophisticated IGBT Power Integrated Module (PIM) engineered for high-performance power conversion systems. Integrating a three-phase input rectifier, a three-phase inverter, and a brake chopper, this module offers a compact, highly reliable solution for designers looking to optimize system efficiency and reduce time-to-market. It is particularly adept at handling applications where low conduction losses and fast, clean switching are paramount.
Technical Deep Dive: Engineered for Superior Performance
The performance of the EVL31-050 is rooted in its advanced silicon design. Two key technological features set it apart:
- Trench Gate and Field-Stop (TrenchFS) IGBT Technology: This is the core of the module's efficiency. The trench gate structure significantly reduces the on-state voltage drop, or VCE(sat), leading to substantially lower conduction losses compared to older planar IGBT technologies. The Field-Stop layer works in tandem to reduce the switching-off losses (Eoff) by enabling a faster tail current decay. For engineers, this translates directly into higher inverter efficiency and reduced heatsink requirements.
- Fast & Soft Switching Anti-Parallel Diode: Paired with the TrenchFS IGBTs, the CAL (Controlled Axial Lifetime) free-wheeling diodes are optimized for soft recovery. This minimizes voltage overshoots and oscillations during switching, which simplifies snubber circuit design and reduces electromagnetic interference (EMI). This feature is critical for creating systems that meet stringent EMC regulations without extensive filtering. For a deeper understanding of IGBT structures, explore our guide on the hybrid structure of IGBTs.
Application Scenarios & Value Proposition
The design of the Vincotech EVL31-050 makes it an ideal component for several high-stakes applications:
- Variable Frequency Drives (VFDs): In industrial motor control, efficiency is key to reducing operational costs. The low VCE(sat) of the EVL31-050 minimizes power loss, especially in low to medium-speed motor applications, delivering tangible energy savings over the lifetime of the equipment.
- Uninterruptible Power Supplies (UPS): Reliability is non-negotiable in UPS systems. The integrated nature of this PIM reduces component count and interconnects, inherently improving system reliability. Its fast switching capability also allows for higher frequency operation, enabling smaller and lighter magnetic components in the output filter stage.
- Servo Drives: The dynamic performance required for robotic and CNC servo drives benefits immensely from the module's fast switching characteristics. The rapid and clean turn-on/turn-off allows for higher control loop bandwidth, resulting in more precise positioning and torque control.
Key Technical Specifications
The following table provides a summary of the critical parameters for the EVL31-050. For a complete dataset, you can download the full EVL31-050 datasheet here.
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (Vces) | 600 V |
| Continuous Collector Current (Ic) @ 25°C | 50 A |
| Collector-Emitter Saturation Voltage (VCE(sat)) typ. | 1.65 V |
| Module Configuration | Three-Phase Inverter + Three-Phase Rectifier + Brake Chopper |
| Package Type | flowPIM 1 |
| Insulation Voltage (Visol) | 2500 V |
Selection Guidance: EVL31-050 vs. Discrete Solutions
When designing a power stage, engineers often face a choice between an integrated PIM like the EVL31-050 and a solution built from discrete IGBTs and diodes. While a discrete approach offers layout flexibility, the EVL31-050 presents compelling advantages. The pre-optimized internal layout of the PIM minimizes stray inductances, which is crucial for reducing voltage overshoots at turn-off. Furthermore, the single-module solution simplifies assembly, reduces procurement complexity, and guarantees thermal performance matching between components. For applications up to approximately 15-20 kW, the EVL31-050 often provides a lower total cost of ownership through reduced design, assembly, and testing time. Learn more about the trade-offs in our analysis of integrated modules versus discrete components.
Frequently Asked Questions (FAQ)
1. What is the recommended gate drive voltage for the EVL31-050?
For optimal performance, a gate drive voltage of +15V for turn-on and -8V to -15V for turn-off is recommended. A negative gate voltage ensures a robust off-state, preventing parasitic turn-on, especially in noisy industrial environments. Poor gate drive design can lead to catastrophic failure.
2. Does this module require a snubber circuit?
Due to the soft-recovery characteristics of the integrated CAL diodes and the low internal inductance of the flowPIM 1 package, the need for a snubber circuit is significantly reduced. However, for applications with very long DC bus connections or extremely fast switching requirements, a small RC or RCD snubber may still be beneficial to further dampen ringing. A final decision should always be based on empirical testing under worst-case load conditions.
3. Can I parallel these modules for higher power output?
The EVL31-050 is not primarily designed for direct paralleling. While possible with careful layout and gate drive considerations to ensure current sharing, it is generally more effective to select a higher current rated IGBT module from the same family for increased power requirements. If you have questions about a specific high-power application, please contact our technical team for a consultation.
