{"id":15160,"date":"2026-07-28T09:00:00","date_gmt":"2026-07-28T07:00:00","guid":{"rendered":"https:\/\/tps-elektronik.com\/?p=15160"},"modified":"2026-06-30T10:24:44","modified_gmt":"2026-06-30T08:24:44","slug":"tps-ev-test-high-power-supply-service-programmable-dc-sources-and-regenerative-power-systems-for-electric-vehicle-battery-and-powertrain-testing","status":"publish","type":"post","link":"https:\/\/tps-elektronik.com\/en\/tps-ev-test-high-power-supply-service-programmable-dc-sources-and-regenerative-power-systems-for-electric-vehicle-battery-and-powertrain-testing\/","title":{"rendered":"TPS EV Test High Power Supply Service: Programmable DC Sources and Regenerative Power Systems for Electric Vehicle Battery and Powertrain Testing"},"content":{"rendered":"<article class=\"blog-post\" lang=\"en\"><header>\n<p>System integrators, test laboratory managers, and procurement teams rarely fail because they lack a specification for an electric vehicle component. They lose time\u2014and budget\u2014when the power supply infrastructure for a new battery or powertrain test facility cannot deliver the required voltage, current, and dynamic response. Or when it dissipates megawatts of energy as heat instead of recovering it. An EV battery pack undergoing a full charge\u2011discharge cycle at 800\u202fV and 500\u202fA dissipates 400\u202fkW continuously. Without regenerative capability, the electricity cost and thermal management burden of this single test can dominate the facility\u2019s operating budget.<br \/>TPS Elektronik\u2019s <strong>EV test high power supply service<\/strong> addresses this challenge through a portfolio of programmable DC sources and regenerative power systems that scale from tens of kilowatts to multiple megawatts. By integrating advanced bidirectional power conversion, battery simulation software, and system\u2011level engineering, TPS delivers complete, turnkey power infrastructure for electric vehicle battery, powertrain, and component testing.<\/p>\n<p><a class=\"cta-primary\" href=\"https:\/\/tps-elektronik.com\/en\/services\/development\/\">Request an EV test power supply consultation \u2192<\/a><\/p>\n<\/header><nav class=\"toc\" aria-label=\"Table of contents\">\n<h2 id=\"toc-en\">Table of contents<\/h2>\n<ol>\n<li><a href=\"#en-why\">Why EV testing demands a new generation of high\u2011power supplies<\/a><\/li>\n<li><a href=\"#en-tps\">TPS EV test power supply solution overview<\/a>\n<ol>\n<li><a href=\"#en-battery\">Battery pack testing: charge\/discharge cycling and simulation<\/a><\/li>\n<li><a href=\"#en-powertrain\">Powertrain and inverter testing<\/a><\/li>\n<li><a href=\"#en-regenerative\">Regenerative energy recovery and grid integration<\/a><\/li>\n<\/ol>\n<\/li>\n<li><a href=\"#en-integration\">System integration, scalability, and control<\/a><\/li>\n<li><a href=\"#en-safety\">Safety, compliance, and automotive standards<\/a><\/li>\n<li><a href=\"#en-applications\">Application scenarios: battery, motor, OBC, and EMC testing<\/a><\/li>\n<li><a href=\"#en-rfq\">RFQ checklist for EV test high power systems<\/a><\/li>\n<li><a href=\"#en-faq\">FAQ<\/a><\/li>\n<\/ol>\n<\/nav>\n<section id=\"en-why\">\n<h2>1. Why EV testing demands a new generation of high\u2011power supplies<\/h2>\n<p>The shift to 800\u202fV vehicle architectures and the push for faster charging (350\u202fkW and above) have rendered traditional unidirectional laboratory power supplies obsolete for many EV test applications. A battery cycler that can only charge a pack\u2014but not discharge it\u2014requires a separate resistive load bank to complete a full cycle. Which consuming energy and generating waste heat. A motor dynamometer test stand that cannot recover the mechanical energy from the motor under test loses it as heat, requiring enormous air\u2011conditioning capacity. The economic and environmental case for bidirectional, regenerative power systems is now overwhelming.<\/p>\n<p>A <strong>programmable high power DC source<\/strong> with bidirectional capability solves this by integrating source and sink functions into a single instrument. Which recovering the absorbed energy to the AC grid with efficiencies exceeding 95\u202f%. This not only reduces electricity costs but also simplifies the test setup\u2014one instrument replaces two. The TPS approach to this grounded in extensive experience with custom power solutions, as demonstrated in our overview of <a href=\"https:\/\/tps-elektronik.com\/en\/custom-power-supply\/\">custom power supply solutions<\/a> and the case study on <a href=\"https:\/\/tps-elektronik.com\/en\/case-studies\/custom-power-supply-design-and-battery-test-systems\/\">battery test systems<\/a>.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-15229\" src=\"https:\/\/tps-elektronik.com\/wp-content\/uploads\/2026\/06\/High-Power-Programmable-DC-Source-EV-Battery-Pack-Testing-Laboratory-Regenerative-\u2013-TPS-Elektronik-1.jpg\" alt=\"High Power Programmable DC Source EV Battery Pack Testing Laboratory Regenerative \u2013 TPS Elektronik Programmierbare Hochleistungs\u2011DC\u2011Quelle EV\u2011Batteriepack\u2011Testlabor Regenerativ \u2013 TPS Elektronik\" width=\"1920\" height=\"1078\" \/><\/p>\n<\/section>\n<section id=\"en-tps\">\n<h2>2. TPS EV test power supply solution overview<\/h2>\n<p>TPS Elektronik\u2019s development service for EV test power supplies delivers complete, integrated systems rather than individual instruments. The scope includes specifying the appropriate power conversion hardware. Which designing the electrical distribution and safety systems, integrating the control software, and commissioning the completed test stand. This turnkey approach tailored to the specific test requirements. Whether it is a single\u2011channel battery cycler for a research laboratory or a multi\u2011megawatt, multi\u2011channel production test system.<\/p>\n<h3 id=\"en-battery\">2.1 Battery pack testing: charge\/discharge cycling and simulation<\/h3>\n<p>Battery testing requires a power supply that can emulate both the charging station (source mode) and the vehicle\u2019s load (sink mode) with high dynamic response. TPS\u2019s programmable DC sources, such as those based on the EA\u2011PU 10000 series and the TPS\u2011BM75053KTIF\u2011S bidirectional modules. Which can execute complex drive\u2011cycle profiles (e.g., WLTP, EPA UDDS) with sub\u2011millisecond response times. The integrated battery simulation software allows the power supply to emulate the electrical behavior of a specific battery chemistry. Which enabling hardware\u2011in\u2011the\u2011loop (HIL) testing of battery management systems (BMS) and on\u2011board chargers (OBC) without the need for a physical battery. For further background on custom battery test systems, refer to the detailed article on <a href=\"https:\/\/tps-elektronik.com\/en\/battery-test-system-and-custom-power-supply-design\/\">battery test system and custom power supply design<\/a>.<\/p>\n<h3 id=\"en-powertrain\">2.2 Powertrain and inverter testing<\/h3>\n<p>Testing an electric motor and inverter requires a DC supply that can source current to the inverter during motoring operation and sink current from the inverter during regenerative braking. TPS\u2019s high\u2011power bidirectional supplies provide this capability with seamless crossover between sourcing and sinking modes. The fast transient response ensures that the simulated DC\u2011link voltage remains stable even during rapid torque reversals. Which providing accurate and repeatable test conditions. This capability is a direct extension of the power electronics design expertise described in our guide on <a href=\"https:\/\/tps-elektronik.com\/en\/buck-boost-converter-design-pcb-layout-reliability\/\">buck\u2011boost converter design and PCB layout reliability<\/a>.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-15200\" src=\"https:\/\/tps-elektronik.com\/wp-content\/uploads\/2026\/06\/high-power-supply-2.png\" alt=\"High Voltage High Power Supply\" width=\"1024\" height=\"541\" \/><\/p>\n<h3 id=\"en-regenerative\">2.3 Regenerative energy recovery and grid integration<\/h3>\n<p>The regenerative capability of TPS\u2019s bidirectional power supplies is a critical differentiator for high\u2011power test facilities. In battery cycling applications, the energy discharged from the battery converted back to AC and returned to the facility grid with up to 95\u202f% efficiency, dramatically reducing net energy consumption. For a 1\u202fMW battery test system operating continuously, this can represent annual electricity savings of several hundred thousand euros. The active power factor correction (typical PF &gt;0.99) and low total harmonic distortion (THDi &lt;5\u202f%) ensure that the regenerated power meets grid\u2011code requirements without degrading the facility\u2019s power quality.<\/p>\n<\/section>\n<section id=\"en-integration\">\n<h2>3. System integration, scalability, and control<\/h2>\n<p>TPS\u2019s development service extends beyond supplying power conversion hardware. For large\u2011scale test facilities, TPS engineers design and integrate the complete electrical infrastructure: AC distribution panels, DC busbar systems with low\u2011loss copper bars, safety interlocks, emergency stop circuits, and thermal management. The modular architecture of TPS power supplies allows them to be paralleled to scale power from tens of kilowatts to multiple megawatts (up to 64 units in parallel. Which delivering 3.84\u202fMW from a single synchronized system). All systems are controlled through a unified software interface. Typically SCPI over Ethernet, with optional CAN, Profibus, or EtherCAT interfaces for integration into existing test automation platforms. This holistic integration approach is a core part of the broader <a href=\"https:\/\/tps-elektronik.com\/en\/development-services-hardware-firmware-protocol\/\">development services for hardware, firmware, and protocol<\/a>.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-15224\" src=\"https:\/\/tps-elektronik.com\/wp-content\/uploads\/2026\/06\/Battery-Simulation-Software-Interface-TPS-Programmable-Power-Supply-HIL-Test-\u2013-TPS-Elektronik-3.jpg\" alt=\"Battery Simulation Software Interface TPS Programmable Power Supply HIL Test \u2013 TPS Elektronik Batteriesimulations\u2011Software\u2011Schnittstelle TPS Programmierbares Netzteil HIL\u2011Test \u2013 TPS Elektronik\" width=\"1920\" height=\"1078\" \/><\/p>\n<\/section>\n<section id=\"en-safety\">\n<h2>4. Safety, compliance, and automotive standards<\/h2>\n<p>High\u2011power EV test systems operate at hazardous voltage and current levels. TPS systems are designed to comply with the safety requirements of <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/26995\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">IEC\u202f61010\u20111<\/a> (safety requirements for electrical equipment for measurement, control, and laboratory use), as well as the relevant automotive standards: ISO\u202f16750 for environmental conditions and electrical testing, and IEC\u202f61851 for electric vehicle conductive charging systems. For facilities that require CE marking, TPS provides the necessary documentation, including a Declaration of Conformity, risk assessment, and test reports. The systems include comprehensive protection functions\u2014overvoltage, overcurrent, overpower, and overtemperature\u2014with adjustable thresholds and automatic shutdown sequences. Safety interlocks are integrated at both the hardware and software levels. Which ensuring that the system meets the rigorous safety expectations of automotive OEMs and test laboratories.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-15219\" src=\"https:\/\/tps-elektronik.com\/wp-content\/uploads\/2026\/06\/Multi\u2011Channel-High-Power-Rack-System-3840kW-TPS-Programmable-DC-Sources-\u2013-TPS-Elektronik-4.jpg\" alt=\"Battery Simulation Software Interface TPS Programmable Power Supply HIL Test \u2013 TPS Elektronik Batteriesimulations\u2011Software\u2011Schnittstelle TPS Programmierbares Netzteil HIL\u2011Test \u2013 TPS Elektronik Mehrkanal\u2011Hochleistungs\u2011Rack\u2011System 3840kW TPS Programmierbare DC\u2011Quellen \u2013 TPS Elektronik\" width=\"1920\" height=\"1078\" \/><\/p>\n<\/section>\n<section id=\"en-applications\">\n<h2>5. Application scenarios: battery, motor, OBC, and EMC testing<\/h2>\n<ul>\n<li><strong>Battery module and pack testing<\/strong>: Automated charge\/discharge cycling for life\u2011cycle testing, performance characterization, and end\u2011of\u2011line production testing.<\/li>\n<li><strong>Electric motor and inverter dynamometer testing<\/strong>: Providing a bidirectional DC link for motor test stands, with regenerative energy recovery to the grid.<\/li>\n<li><strong>On\u2011board charger (OBC) testing<\/strong>: Simulating the AC grid on the input side and the battery on the output side. Which enabling complete OBC functional and efficiency testing.<\/li>\n<li><strong>Automotive EMC testing<\/strong>: Supplying clean, high\u2011power DC to EV components inside an EMC chamber, where the power supply itself must be electromagnetically quiet and isolated from the measurement environment.<\/li>\n<li><strong>DC fast\u2011charging station testing<\/strong>: Emulating an EV battery to test the output performance and communication protocols of DC fast chargers up to 350\u202fkW.<\/li>\n<\/ul>\n<\/section>\n<section id=\"en-rfq\">\n<h2>6. RFQ checklist for EV test high power systems<\/h2>\n<ul>\n<li><strong>Test application<\/strong>: Battery cycling, powertrain, OBC, EMC, or other.<\/li>\n<li><strong>Power requirements<\/strong>: Maximum DC voltage, maximum DC current, total power per channel, and number of channels.<\/li>\n<li><strong>Bidirectional operation<\/strong>: Is regenerative energy recovery required?<\/li>\n<li><strong>Dynamic performance<\/strong>: Required voltage and current slew rates, response time, and any specific drive\u2011cycle profiles.<\/li>\n<li><strong>Control interface<\/strong>: Ethernet\/SCPI, CAN, Profibus, EtherCAT, or other.<\/li>\n<li><strong>Safety and compliance<\/strong>: Applicable standards (IEC\u202f61010\u20111, ISO\u202f16750, IEC\u202f61851), and required certifications (CE, UL, TUV).<\/li>\n<li><strong>Facility integration<\/strong>: AC input voltage and capacity, cooling infrastructure, and any physical space constraints.<\/li>\n<li><strong>Documentation<\/strong>: Required test reports, risk assessments, and certification support.<\/li>\n<\/ul>\n<p><a class=\"cta-primary\" href=\"https:\/\/tps-elektronik.com\/en\/services\/development\/\">Submit your EV test power system RFQ \u2192<\/a><\/p>\n<\/section>\n<section id=\"en-faq\">\n<h2>7. FAQ<\/h2>\n<p><strong>What is the largest power system TPS can deliver for EV testing?<\/strong><br \/>TPS can scale systems to multiple megawatts by paralleling power supply modules. A single synchronized system can reach 3.84\u202fMW, and larger systems can be engineered by combining multiple subsystems.<\/p>\n<p><strong>Can TPS\u2019s regenerative power supplies simulate a battery for HIL testing?<\/strong><br \/>Yes. TPS provides battery simulation software that allows the power supply to emulate the electrical characteristics of a specific battery chemistry, enabling BMS and OBC testing without a physical battery.<\/p>\n<p><strong>What energy savings can be expected from a regenerative test system?<\/strong><br \/>In battery cycling applications, over 95\u202f% of the discharge energy is recovered to the grid, reducing net energy consumption by a similar percentage compared to a non\u2011regenerative system. The exact savings depend on the test profile and duty cycle.<\/p>\n<p><strong>Where can I learn more about TPS\u2019s broader development and power supply capabilities?<\/strong><br \/>Visit the <a href=\"https:\/\/tps-elektronik.com\/en\/services\/development\/\">TPS development service page<\/a>, or explore our resources on <a href=\"https:\/\/tps-elektronik.com\/en\/custom-power-supply\/\">custom power supplies<\/a> and <a href=\"https:\/\/tps-elektronik.com\/en\/battery-test-system-and-custom-power-supply-design\/\">battery test systems<\/a>.<\/p>\n<\/section>\n<footer style=\"background: #2d5797; padding: 30px; border-radius: 14px; margin-top: 40px;\">\n<p style=\"color: #ffffff; font-size: 16px; line-height: 1.6; margin: 0;\"><strong>Ready to power your EV test facility with a future\u2011proof, regenerative high\u2011power system?<\/strong><br \/>Contact TPS Elektronik for a development service that delivers integrated, programmable DC sources and complete turnkey solutions.<br \/><a style=\"color: #ffffff; font-weight: 600; text-decoration: underline; display: block; margin-top: 10px;\" href=\"https:\/\/tps-elektronik.com\/en\/services\/development\/\">Request your EV test power supply consultation \u2192<\/a><\/p>\n<\/footer><\/article>\n\n<style id=\"wpforms-css-vars-4659-block-58a4cb14-36a8-4988-84a2-b9d294f7da35\">\n\t\t\t\t#wpforms-4659.wpforms-block-58a4cb14-36a8-4988-84a2-b9d294f7da35 {\n\t\t\t\t--wpforms-field-size-input-height: 43px;\n--wpforms-field-size-input-spacing: 15px;\n--wpforms-field-size-font-size: 16px;\n--wpforms-field-size-line-height: 19px;\n--wpforms-field-size-padding-h: 14px;\n--wpforms-field-size-checkbox-size: 16px;\n--wpforms-field-size-sublabel-spacing: 5px;\n--wpforms-field-size-icon-size: 1;\n--wpforms-label-size-font-size: 16px;\n--wpforms-label-size-line-height: 19px;\n--wpforms-label-size-sublabel-font-size: 14px;\n--wpforms-label-size-sublabel-line-height: 17px;\n--wpforms-button-size-font-size: 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They lose time\u2014and budget\u2014when the power supply infrastructure for a new battery or powertrain test facility cannot deliver the required voltage, current, and dynamic response. Or when it dissipates megawatts of energy as heat instead\u2026 <a href=\"https:\/\/tps-elektronik.com\/en\/tps-ev-test-high-power-supply-service-programmable-dc-sources-and-regenerative-power-systems-for-electric-vehicle-battery-and-powertrain-testing\/\">Read More &raquo;<\/a><\/p>\n","protected":false},"author":9,"featured_media":15229,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[57],"tags":[],"class_list":["post-15160","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-content"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>TPS EV Test High Power Supply Service: Programmable DC Sources and Regenerative Power Systems for Electric Vehicle Battery and Powertrain Testing - TPS<\/title>\n<meta name=\"description\" content=\"TPS high power supply service delivers programmable DC sources and regenerative power systems for EV battery, powertrain, and component testing. 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