Standard and custom OEM programmable DC platforms tailored for wide-bandgap semiconductor characterization and dynamic load stress testing.
Why custom high-voltage DC bus power supplies are critical for evaluating Silicon Carbide (SiC) and Gallium Nitride (GaN) switching behaviors in Indian power electronics manufacturing.
During Double Pulse Testing (DPT), a power switch (IGBT, SiC MOSFET, or GaN HEMT) experiences microsecond-scale current pulses exceeding hundreds of amperes. Standard programmable DC supplies often exhibit control loop lag, resulting in severe voltage droop across the high-voltage DC bus ($V_{DS}$). Our custom OEM DPT power supplies integrate custom low-ESR/ESL capacitive bus decoupling, precision current-fed topologies, and fast voltage recovery feedback loops. This ensures that when the second pulse fires to measure turn-on switching loss ($E_{on}$) and reverse recovery current ($I_{rr}$), the DC voltage rail remains rock-solid without injecting measurement artifacts.
High-speed switching devices operating at $dv/dt > 100\text{ V/ns}$ induce extreme voltage spikes across parasitic trace inductances ($V = L \cdot di/dt$). Our factory-engineered DPT DC power sources offer custom integrated internal blocking diodes, ultra-fast over-voltage trip protection logic, and balanced copper busbar geometry. By neutralizing reverse energy feedback from inductive load coils, our units protect sensitive measurement equipment, high-bandwidth current view resistors (CVRs), and Rogowski coils during aggressive short-circuit and avalanche breakdown testing.
Combining 40+ years of USA engineering heritage, vertical integration, and deep localized distribution to drive India’s electrification revolution.
From in-house precision sheet metal fabrication and magnetic component winding to automated SMT PCB assembly and 100% full-power burn-in testing, our vertically integrated plant eliminates supply chain volatility. OEM clients in India benefit from rapid 4-to-6 week build cycles for bespoke high-power test cabinets.
Unlike conventional voltage-fed power supplies susceptible to catastrophic internal failure during output short circuits, our proprietary current-fed power processing topology stores energy in a primary-side inductor. This provides inherent immunity against arcing, output flashovers, and repetitive DPT pulse stress.
We configure our power systems to handle the grid realities of Indian industrial hubs—supporting 415V 3-Phase 50Hz input standards, wide line-voltage fluctuations, tropicalized conformal coating against high humidity, and full compliance with Bureau of Indian Standards (BIS) and CE guidelines.
Compare performance parameters across our rack-mount and industrial cabinet platforms designed for DPT DC bus biasing and dynamic load simulation.
| Series Platform | Power Output Range | Voltage Range ($V_{DC}$) | Form Factor / Cooling | DPT Bus Stiffness & Response | Primary Application Area |
|---|---|---|---|---|---|
| SLx Series | 1.5 kW – 10 kW | 5V to 1000V | 1U Rack-Mount / Forced Air | Low-capacitance mode, < 15µs recovery | Discrete GaN/SiC DPT bench testing |
| XR Series | 2 kW – 10 kW | 16V to 2000V | 2U Rack-Mount / Forced Air | High voltage insulation, ultra-low ripple | High-voltage SiC module double pulse evaluation |
| TS Series | 5 kW – 100 kW | 5V to 4000V | 3U to 16U Rack / Forced Air | Internal bus bar option, fast transient rail | EV Traction Inverter & DC-DC Converter Testing |
| MT Series | 150 kW – 3 MW | 16V to 4000V | Floor-Standing Cabinet / Air | Sub-millisecond megawatt pulsed rail support | Heavy industrial drives, locomotive & grid inverters |
| ML Series | 500 kW – 10 MW+ | 80V to 4000V | Modular Cabinet / Liquid Cooled | Direct liquid-cooled low-impedance DC bus | Cleanroom semiconductor fab & MW-scale R&D labs |
From electric vehicle hubs in Maharashtra and Karnataka to solar power corridors in Rajasthan, our DPT power supplies accelerate local engineering initiatives.
India’s EV revolution—led by automotive clusters in Pune, Bengaluru, Chennai, and Manesar—demands rigorous switching loss qualification of 800V SiC traction inverters. Our custom power supplies provide stable DC voltage biasing up to 1000V while enduring repetitive high-current pulse demands during automated Double Pulse Test cycles at test facilities like ARAI and ICAT.
Under India's National Solar Mission, utility-scale central and string solar inverters require ultra-efficient 1500V DC switching architectures. Engineers use our high-voltage programmable supplies combined with Photovoltaic Power Profile Emulation (PPPE) software to validate dynamic maximum power point tracking (MPPT) and WBG inverter gate-drive stability under extreme thermal stresses.
In partnership with defense research institutions (DRDO, ISRO) and Indian Railways electrification projects (CLW, RDSO), our heavy-duty MT and ML Series supply stable high-power DC feeds for testing pulse-radar transmitters, magnetic pulse formers, and high-voltage traction converters operating under severe environmental conditions.
India’s premier academic centers (IIT Bombay, IIT Madras, IIT Delhi, IISc Bengaluru) rely on our programmable SL and XR series for wide-bandgap device modeling. The uniform SCPI command set and native Python / LabVIEW driver support allow researchers to integrate our power supplies into automated laboratory test benches easily.
How government policy, manufacturing subsidies, and domestic innovation are shifting testing standards across the subcontinent.
The Indian Government’s Production Linked Incentive (PLI) scheme for semiconductors and clean-tech manufacturing has accelerated domestic power module packaging. As local assembly of SiC MOSFETs and GaN switches scales, high-throughput automated factory DPT test systems have transitioned from luxury tools to mandatory quality assurance requirements.
With India expanding its electrification focus to heavy-duty e-buses and commercial trucks, test voltages have migrated from 400V up to 800V/1200V DC levels. Power supplies must feature wide constant-power operation curves to service diverse battery architecture voltages without forcing laboratories to purchase multiple isolated fixed-voltage power supplies.
Industrial testing facilities in regions like Gujarat, Telangana, and NCR face summer ambient temperatures exceeding 40°C to 45°C. Magna-Power’s conservative thermal engineering ensures full continuous rated power operation up to 50°C ambient without unexpected output power thermal throttling during long-duration endurance testing.
Key commercial, technical, and regulatory answers for engineering leads and sourcing managers importing DPT power supplies into India.
Consult directly with our experienced power electronics application team. Send us your specific voltage, pulse current, switching frequency, and bus stiffness requirements to receive a detailed technical proposal and quotation tailored for the India market.
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