The TDK-Lambda TCR300S9 is a 300 V, 9 A DC power supply delivering 2700 W output power for industrial and commercial applications. It employs SCR phase-controlled regulation with constant voltage/constant current capability and automatic crossover, combining a main power transformer, rectification stage, and double L/C filtering for low ripple output. The unit accepts external control levels for both voltage and current, integrates metering functions, and includes circuit protection. High operating efficiency and low output ripple are characteristic of the TCR series design.
Technical Specifications
• Output Voltage: 300 V
• Output Current: 9 A
• Output Power: 2700 W
• Regulation Type: SCR Phase Controlled, Constant Voltage/Constant Current with Automatic Crossover
• Output Ripple and Noise: Low (characteristic of TCR series design)
• Efficiency: High (characteristic of TCR series design)
• Regulation Method: Output voltage and current sensing with internal references and external control capability
– Key Features
• SCR phase control topology with main power transformer and double L/C filtering
• Dual-mode regulation: constant voltage or constant current based on control level
• External control input for voltage and current adjustment
• Integrated metering functions for voltage and current monitoring
• Circuit protection for demanding industrial environments
• Dual sensing: output voltage and current feedback for precision regulation
– Typical Applications
• Industrial power systems requiring stable, regulated DC output
• Commercial equipment needing high current delivery at 300 V
• Applications demanding switchable constant voltage/constant current operation
• Systems requiring external control or remote voltage/current adjustment
– Compatibility & Integration
The TCR300S9 accepts external control signals for dynamic voltage and current adjustment. Built-in metering provides real-time monitoring of both output parameters, enabling integration into supervisory control and data acquisition systems.















