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Technology

High-Density, High-Efficiency Power Electronics

At the heart of Chargeworks’ innovation lies a simple principle: do more with less. By pushing the boundaries of power density (more power per unit volume) and conversion efficiency, we enable EV chargers that are faster, smaller, lighter, and more sustainable.

Traditional silicon devices struggle to meet the demands of today’s EV ecosystem. To overcome this, we leverage next-generation semiconductor materials and advanced converter topologies, enabling compact and reliable charging solutions built for India and designed for the world.

Why Power Density Matters

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Smaller footprint

Easier vehicle integration and space-saving installation.

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Lightweight design

Improved portability and reduced logistics costs.

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Thermal advantage

Lower heat generation enables better performance in harsh environments.

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Scalability

From 2W/3W onboard chargers to larger infrastructure solutions.

Material Choice: The Game Changer

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Gallium Nitride (GaN)

Strengths: High switching frequency, lower losses, smaller magnetics.


Applications: Onboard chargers (1.1–3.3 kW), portable chargers, compact converters.


 

Impact: Higher power density vs silicon, enabling ultra-compact designs.

Silicon Carbide (SiC)

Strengths: Higher breakdown voltage, better thermal performance, ideal for high power.



Applications: Fast DC chargers, industrial-scale converters.


Impact: Rugged performance for heavy-duty use and higher voltage applications.

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Silicon (Si)

Strengths: Cost-effective, mature ecosystem, reliable for lower-power designs.


Applications: Entry-level chargers, cost-sensitive deployments.


Impact:
Best suited where compactness and extreme efficiency are not critical.

Why GaN-Based Power Electronics is Better

The Next Leap in Power Electronics

For decades, Silicon (Si) has been the foundation of power electronics. But as the world moves towards electric mobility, renewable energy, and compact consumer devices, silicon is reaching its limits. Gallium Nitride (GaN), a wide bandgap semiconductor, is unlocking a new era of high-efficiency, high-density, and sustainable power electronics.

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Higher Efficiency

  • Higher efficiency with lower loss compared to silicon

  • Greater than 98% efficiency

  • Minimal cooling requirements

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Faster Switching & Performance

  • Higher switching frequencies enabled by GaN allow the use of smaller inductors, transformers, and capacitors.

  • Up to 40% reduction in size and weight of chargers

  • Compact systems are easier use as portable chargers, and infrastructure.

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Compact & Lightweight

  • Switching frequencies>250 kHz enable faster response, improved power factor correction, higher power density

  • Allowing faster charging cycles for EVs without compromising safety or durability.

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How We Achieve It

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Advanced Topologies

Smart Control

Thermal Optimization

Integration

The Deep-Tech

Moat

Chargeworks is incubated at GEECI (Gallium Nitride Ecosystem Enabling Centre and Incubator), IISc Bangalore (FSID). This provides us access to world-class labs, R&D expertise, and device-level innovations, strengthening our deep-tech advantage and ensuring our solutions stay ahead of the curve.

Our Edge

  • Compact Designs: Up to 25% smaller with each generation.

  • Higher Efficiency: Target >95% across key models.

  • Standards-Driven: Designed to meet AIS-138/156, IEC 61851, and global compliance.

  • Future-Ready: Flexible platforms to adopt emerging devices and topologies.

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Registered Office: 

Wattmotive EV Tech Private Limited

Wework Vaishnavi Signature, 78/9 Outer Ring Road, Bellandur, Bengaluru, Karnataka, 560103

©2026 Wattmotive EV Tech Private Limited, All rights reserved.

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Corporate Identification Number: U29304KA2024PTC189523

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