Premium programmable AC/DC power sources calibrated for Sofia and Plovdiv industrial parks, engineering laboratories, and EMS sectors.
Bulgaria has emerged as one of Southeast Europe's most dynamic technology and manufacturing hubs. Rapid development in automotive electronics, sensor production, home appliance assembly (EMS), and high-tech development parks around Sofia, Plovdiv, and Ruse has driven demand for highly stable, precise, and customizable electrical testing equipment. As power grids adapt to integration of renewable energy sources, testing industrial electronics under simulated real-world conditions is paramount to achieving CE compliance and global export readiness.
Operating under the European continental grid standard of 230V single-phase and 400V three-phase at 50Hz, Bulgarian industrial operations must ensure high power quality. Regional distributions managed by utilities like Electrohold, EVN, and Energo-Pro are subject to local fluctuations, transient spikes, and harmonic distortion caused by heavy industrial installations and decentralized PV solar integration. Our line of high-performance programmable AC power sources acts as a safeguard. They function not only as standard frequency converters but also as precise grid simulators capable of replicating brownouts, voltage dips, and frequency shifts required to test home appliances and industrial components destined for EU and global export.
We provide two distinct technological architectures designed for different manufacturing and R&D stages:
As the European Union moves toward carbon neutrality, the integration of smart grids and vehicle-to-grid (V2G) systems represents a major technological shift. Our ongoing product roadmap includes bi-directional AC/DC power sources featuring regenerative capability, returning energy back to the grid during testing to reduce operating costs and support green manufacturing initiatives. This energy recovery capability is designed to help Bulgarian manufacturers lower their carbon footprint and reduce overall testing expenditures.
Founded in 2006 in Shenzhen, China, Shenzhen Sophpower Electronics Co., Ltd. is a high-tech enterprise specializing in testing power supplies. Our engineering team brings extensive field experience to the design of advanced power instruments, including AC/DC power supplies, linear simulators, voltage regulators, and industrial UPS systems.
By leveraging the efficiency of Shenzhen’s electronics ecosystem and implementing advanced manufacturing practices, we ensure our programmable power supplies meet tight tolerances. Our factory combines structured assembly lines, automated reflow soldering, and robust copper-bar fabrication with thorough multi-stage inspection to deliver reliable performance for demanding industrial applications worldwide.
Our quality control workflow includes raw component screening, circuit board assembly (PCBA) validation, high-stress debugging, and final electrical testing. This ensures each unit exported to Bulgaria performs reliably under sustained load conditions.
Circuit Assembly
Circuit Board Assembly
Debugging Process
Quality Inspection Process
Copper Bar Production Equipment
Electric Ferrowire Processing
Precision Assembly Tools
Reflow Soldering Machine
Assembly & Testing Workbench
CAD Engineering & Drawing Design
Our commitment to reliability is backed by advanced calibration and diagnostic systems. We analyze and test every circuit parameter before shipping.
Calibrated Industrial Multimeters
High-Frequency LCR AutoTester
Semiconductor Characteristic Plotter
Transient Digital Oscilloscope
Dynamic Power Quality Analyzer
Precision Clamp Current Meters
Automated Simulation Control Software Interface
Industrial components manufactured or tested in Bulgaria must comply with EU Directives. Our single-phase programmable AC power sources and high-power DC units support your engineering team in meeting strict regional standards:
Full verification matching EN 61000-3-2 and EN 61000-3-3 standards. Perfect for simulating voltage fluctuations, flicker, and harmonics on single-phase connections.
Our programmable DC power supplies mimic battery cell chemistry profiles and charge-discharge behaviors. Designed for automotive parts suppliers in Plovdiv and Sofia.
Engineered with complete galvanic isolation between inputs and outputs, ensuring protection for both the operator and the Unit Under Test (UUT) from high voltage surges.
Understanding the logistical demands of importing electronic equipment from China, Sophpower offers comprehensive support throughout the process. We assist with custom-cleared logistics routes, complete export documentation (EUR.1 certificates, HS codes, Certificates of Origin), and secure packaging. We work closely with Bulgarian customs brokers and freight companies to coordinate deliveries directly to your factory or R&D center.
Technical answers to common integration questions regarding programmable power supplies in the EU and Bulgaria.
Explore our full range of programmable DC converters, voltage regulators, and high-power industrial stabilizers suitable for Bulgarian infrastructures.