32000 Series Linear Power Supply - Calex Electronics - #1

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32000 Series Open Frame AC/DC Regulated Linear Power Supplies These high quality linear regulated power supplies provide outstanding value and are designed for ease of application and long trouble-free life. They will accommodate AC inputs from 100 V to 240 V and provide a wide range DC outputs with very low ripple. All 32000 series power supplies are built around industry-standard case sizes to simplify installation and a 3.75 kV isolation safety transformer. For additional safety the transformer primary is protected from thermal overloads by a thermal fuse. This fuse will blow if a transformer temperature of 130°C is exceeded. Every unit incorporates a safety earth tag. All models are fitted with automatic foldback current limiting. An overvoltage protection (OVP) circuit protects sensitive loads against excessive voltage such as in TTL logic. OVP is a standard feature of all 5 V output units and an option on all other units. The remote sensing feature, included in almost all 32000 series power supplies, may be used to compensate the voltage drop across the load lines. All dual-output power supplies feature a unique anti-latch circuit to minimise common mode latch up. General Specificat ions A.C. Input 100/120/220/240 V AC +10%, -12%, 47 to 60 Hz D.C. Output See Voltage/Current Rating Chart. Adjustment range ±5% minimum. Line Regulation ±0.05% for a 10% line change. Load Regulation ±0.05% for a 50% load change. Output Ripple 2 V to 15 V units: 5.0 mV PK-PK maximum 20 V to 28 V units: 0.02% PK-PK maximum Transient Response 50 ìs for a 50% load change Short Circuit and Overload Protection Automatic current limit/foldback Overvoltage Protection Built-in on all 5 V outputs. Set at 6.2 V ±0.4 V Other models use optional overvoltage protection. See Option 4 overleaf Remote Sensing Provided on most models, open sense load protection built in. Stability ±0.3% for 24 hour period after 1 hour warm-up Temperature Rating Standard Range: 0°C to +50°C full-rated, derated linearly to 40% at 70°C Extended Range: -40°C to +50°C full-rated, derated linearly to 40% at 70°C TEMPERATURE DERATING CURVE Temperature Coefficient ±0.03%/°C maximum Efficiency (typical) 5V unit: 45%; 12 V and 15 V units: 55%; 24 V units: 60% Isolation Input to ground: 3750 V AC min. I nput to output(s): 3750 V AC min. Output to ground: 500 V AC min. Leakage current (live to ground): 5 ìA max.