Explore our CE-certified line of high-voltage laboratory power supplies, variable transformers, and precision electronics diagnostic equipment.
Headquartered in Shenzhen, China, Shenzhen Myami Power Technology Co., Ltd. (MYAMI) is a technology-driven manufacturer and solution provider specializing in high-precision, industrial-grade power supplies, custom transformers, and electrical test equipment. Designed for engineering rigor, MYAMI bridges the critical gap between complex electronic research, high-voltage component testing, and scalable industrial automation.
Our technical foundation relies on rigorous compliance with international safety protocols. As a leading manufacturer of CE certified voltage transformers and programmable test sources, we build equipment designed to operate under challenging electrical environments. We ensure every unit leaving our production line exhibits unmatched reliability, high power efficiency, and long-term thermal stability.
Featuring multi-digit LED displays, ultra-low ripple, and rapid transient response. Engineered for precision electronic R&D, semiconductor evaluation, and PCB debugging.
Delivering high-current, high-voltage DC/AC regulated power supplies (ranging up to hundreds of volts and amperes) built for industrial motor drives, electroplating rectifiers, and heavy-duty component burn-in testing.
Providing specialized DC power units, battery simulators, and variable AC power sources engineered for Electric Vehicle (EV) On-Board Chargers (OBC), BMS evaluation, and solar inverter testing.
Supplying complementary test bench solutions, including digital oscilloscopes, multimeters, and specialized AC voltage regulators for global laboratories and technical institutes.
In modern industrial distribution and laboratory environments, safety standards are not merely regulatory formalities—they are foundational design parameters. The Conformité Européenne (CE) marking on a transformer guarantees compliance with essential health, safety, and environmental protection standards within the European Economic Area. However, achieving genuine CE certification involves a deep understanding of electrical safety, insulation systems, and electromagnetic compatibility (EMC).
Our manufacturing philosophy addresses three key vectors of transformer safety and performance:
When selecting a voltage converter (such as our ST-2000VA Volt Converter), matching the magnetic architecture to your specific application is crucial. Galvanic isolation transformers (featuring physically separated primary and secondary windings) break the ground loop and provide enhanced user safety, making them ideal for medical, laboratory, and sensitive test environments. Auto-transformers (sharing a single continuous winding with a tap) offer higher efficiency and reduced weight, making them cost-effective options for general voltage stepping (e.g., 220V to 110V conversion in consumer and light commercial devices).
MYAMI implements a robust quality management system certified under ISO9001. Every system, from dry-type converters to complex programmable AC power sources, undergoes a multi-phase validation process at our Shenzhen factory. Our supply chain features complete end-to-end trace documentation, ensuring accountability from the receipt of raw silicon steel to the final calibration steps.
Raw Material
PCB Checking
Assembling
Debug
Aging
Calibration
QC Checking
Packing
This detailed processing strategy guarantees that every system is protected by multi-layer safety parameters, including Over-Voltage Protection (OVP), Over-Current Protection (OCP), Over-Temperature Protection (OTP), and short-circuit safeguards. These safeguards allow our devices to easily integrate into automated industrial platforms via standard RS485, RS232, and CAN communication interfaces.
To produce transformers and power sources capable of performing under demanding industrial conditions, we utilize advanced instrumentation across our workshops. Our engineers leverage precision soldering, computerized screwdriver stations, high-voltage dielectric strength testing, and digital analytical tools.
These capabilities ensure that our product designs translate reliably into finished hardware, achieving the repeatability needed for high-volume supply contracts.
Soldering Station
Electronic Screwdriver
PCB Check
Debug
QC Check
Multimeter
Hi-pot Tester
Oscilloscope
LCR Meter
Digital Power Meter
Design Stage
Multimeter Setup
Hi-pot Verification
Oscilloscope Sweep
LCR Evaluation
Power Meter Analysis
Industrial power requirements vary significantly by region. A CE-certified transformer designed for the European market must account for specific grid characteristics, whereas systems deployed in North America or the Asia-Pacific face different regulatory and voltage constraints.
In Europe, the rapid rollout of commercial EV charging hubs and microgrid solar arrays requires robust step-up and step-down configurations. High-power systems, such as our MYAMI 3000W Hybrid Inverters and custom isolation transformers, are deployed to manage grid feeding protocols, converting variable DC photovoltaic currents to stable, phase-synchronized AC outputs. Our CE certification according to EN 50549 ensures compliance with localized grid-code standards, preventing voltage fluctuations and harmonics from feeding back into public lines.
For import-export businesses, scientific testing facilities, and industrial machine operators moving machinery between the United States (typically 120V/248V 60Hz configurations) and Europe (230V/400V 50Hz grids), our ST-Series Dry Type Volt Converters provide a critical bridge. Engineered to support bidirectionality, these systems handle voltage transformations (e.g., 220V to 110V or 110V to 220V) without risking overheating or phase shift issues.
Within semiconductor production hubs and automotive sub-assembly plants across East Asia, stable power is critical. Production systems integrated with our programmable power supplies use automated voltage feedback loops to offset transient grid spikes, protecting sensitive micro-controllers, stepper motors, and precision diagnostic tools.
Operating from Shenzhen, the global epicenter of electronic and power engineering, MYAMI leverages a highly integrated manufacturing ecosystem. This strategic location offers unique advantages that directly translate to value for our global customers:
As global energy systems transition to smart grids and high-frequency power architectures, MYAMI is continuously evolving its technical capabilities. Our development roadmap focused on three key areas of innovation:
Moving beyond conventional 50Hz/60Hz designs, we are developing Solid-State Transformers (SST) utilizing Silicon Carbide (SiC) and Gallium Nitride (GaN) power switches. This allows for smaller systems with higher power densities.
Integrating real-time thermal monitoring, winding vibration tracking, and insulation status diagnostics into our transformer systems, utilizing standard CAN bus and Modbus interfaces for predictive maintenance.
Designing custom transformer cores that meet upcoming European Eco-Design regulations for load and no-load losses, ensuring long-term compliance and high efficiency.
Today, MYAMI's equipment supports research institutions, automotive OEMs, aerospace contractors, and consumer electronics brands across North America, Europe, East Asia, and the Middle East. We back our hardware with a clear global support structure:
"Every high-power laboratory transformer, benchtop DC regulator, and solar inverter system bearing the MYAMI name is subject to rigorous testing. We test insulation resistances at up to 3000V AC and inspect wave shapes using digital harmonic analyzers before final dispatch. We build safety directly into our copper and silicon architecture."
— MYAMI Quality Assurance Division
Essential operational questions answered by the MYAMI Engineering Department.
Our transformers meet the European Low Voltage Directive (LVD) 2014/35/EU and the Electromagnetic Compatibility (EMC) Directive 2014/30/EU. We apply design standards such as EN 61558-1 (general safety of power transformers) and EN 61558-2-4 (particular requirements for isolation transformers) to ensure safety under a wide range of operating conditions.
Yes. Standard voltage converters like our ST-2000VA are designed to run continuously at their rated capacities. However, for inductive loads (such as electric motors, compressors, and pumps), we recommend selecting a transformer capacity 2.5 to 3 times the nominal equipment wattage to accommodate starting current surges.
Our high-power programmable AC sources (such as the 10KVA MY-70D100) utilize advanced filtering circuits alongside precise DSP-controlled switching topologies. This design maintains Total Harmonic Distortion (THD) below 1% under resistive loads, providing clean waveforms for sensitive lab tests.
Yes. As a direct factory manufacturer, we can customize winding taps, configure primary/secondary voltage levels, implement multi-phase configuration balances, and design custom enclosures to meet specific physical and environmental constraints.
Most of our programmable DC and AC power systems are equipped with RS485 and RS232 ports as standard, supporting Modbus RTU protocols. For automotive and battery testing setups, CAN bus communication modules can be specified to facilitate integration with high-speed data acquisition networks.
Explore our line of industrial inverters, testing loads, and frequency generation tools.
Myami Power
