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SPECIFICATIONS:
Part Number: DS3820PS5D
Manufacturer: General Electric
Series: Mark IV
Product Type: Multiple Output Power Supply Board
Input Voltage Range: 85–264V AC
Number of channels: 12
Input Frequency: 47–63 Hz
Output Channels: 3 to 5
Typical Output Voltages: +5V DC
Isolation Voltage: 1500V AC
Overvoltage Protection: Yes
Operating Temperature: -20°C to +70°C
Size: 8.25 cm high x 4.18 cm
Repair: 3-7 days
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States
FUNCTIONAL DESCRIPTION:
DS3820PS5D is a Multiple-Output Power Supply Board manufactured and designed by General Electric as part of the Mark IV Series used in GE Speedtronic Gas Turbine Control Systems. The Multiple Output Power Supply Board is designed to efficiently convert a single AC or DC input power source into several independently regulated DC output voltages required by different components in an industrial control system. Typical outputs include +5V, ±15V, and +24V, suitable for powering logic circuits, analog devices, relays, and communication interfaces. It utilizes linear regulators, switching converters, or hybrid designs to maintain voltage stability and minimize ripple and noise. The board integrates protection features such as overvoltage, overcurrent, and thermal shutdown to ensure safe and reliable operation across all output channels. These boards are essential in systems like turbine controls, PLCs, and DCS, where multiple voltage levels must be supplied from a single input source.
INSTALLATION:
The board is then securely mounted within the control panel, rack, or chassis using appropriate standoffs or DIN rail mounting hardware as per the system design. Proper grounding is essential and should be established to minimize electrical noise and ensure system safety. The input power connections either AC or DC, must be made according to the voltage and polarity specifications provided by the manufacturer. Output terminals should be connected to their respective loads using the correct wire gauge, and shielded cables should be used for sensitive analog or communication circuits. All connections must be double-checked for tightness and correctness before re-energizing the system. Once installation is complete, the system can be powered on, and the board should be monitored for correct voltage outputs and operational indicators such as status LEDs or diagnostic signals.
OPERATIONS:
The Multiple Output Power Supply Board begins converting the incoming AC or DC voltage into multiple regulated DC outputs, each dedicated to powering specific components of the control system. Each output channel is independently controlled and monitored to maintain precise voltage levels despite fluctuations in load conditions. The board utilizes internal feedback regulation loops, filtering circuits, and isolation mechanisms to ensure clean, stable power delivery with minimal ripple and electrical noise. It supports continuous operation within its rated current and voltage limits, and built-in protection features such as overvoltage, overcurrent, short-circuit, and thermal shutdown safeguard both the power supply and connected devices.
WOC maintains the largest inventory of Replacement parts for GE Speedtronic Gas Turbine Control Systems. Additionally, we offer warranty-backed unused and rebuilt boards as well as board repairs for your damaged ones. For your OEM needs, our team of professionals is available around the clock. We at WOC are happy to help you with any needs you may have in terms of automation. Please contact our team by phone or email for pricing and availability on any components and repairs.
What is the purpose of a Multiple Output Power Supply Board?
It provides several regulated DC output voltages from a single AC or DC input source, supplying different control system components with the required voltages like +5V, ±15V, and +24V.
What happens if one output is overloaded or shorted?
The board typically includes overcurrent and short-circuit protection. If one channel is faulty, it either shuts down individually or limits current without affecting the other outputs, depending on the design.
Does the power supply provide galvanic isolation between outputs?
In many industrial-grade models, galvanic isolation is provided between input and output, and sometimes between individual outputs, for enhanced safety and noise immunity.
