1405A

Cal Test Electronics introduces the Global Specialties 1405A and 1407 100W triple output switching mode DC power supplies designed for accuracy, compactness, and portability. Equipped with rotary encoder knobs for precise voltage and current adjustment with a 4-digit LCD for clear readout. They operate in both constant voltage (CV) and constant current (CC) modes, with automatic crossover based on load conditions. Each model is passively cooled for quiet operation and suited for benchtop or embedded applications.

All three outputs—one variable and two fixed—are fully isolated, allowing flexible configurations for a wide range of test and development scenarios. The main output is adjustable (up to 20V, 36V, or 60V depending on the model), while auxiliary outputs provide fixed 3.3/5VDC and 12VDC. Isolation enables series or parallel connections for generating bipolar, stacked, or higher voltage rails, making these supplies ideal for troubleshooting multi-voltage circuit boards or devices requiring dual supplies. Output polarity is user-configurable across terminals.

The series now supports Windows 11 and includes a USB Type-B interface for remote control and monitoring. Users can operate the power supply through PC control software with graphical interface or via custom automation using standard SCPI command sets. This feature enhances usability in automated test setups or when precise programmable control is needed from a host PC. The LCD panel confirms USB connection status for clear remote operation feedback.

Designed with robust protection features, the power supplies include overvoltage, overcurrent, short-circuit, and overtemperature safeguards. Compliance with CE safety and EMC standards ensures suitability for lab, production, and educational environments. With passive power factor correction and high efficiency (>80%), the 1400 series delivers clean, reliable power in a compact chassis.