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SPECIFICATIONS:
Part Number: DS3820PSLP
Manufacturer: General Electric
Series: Mark IV
Product Type: AC/DC Power Supply Module
Input Voltage Range: 100�240 VAC
Output Current: 1�10 A
Output Voltage: 48 VDC
Output Power: 150 W
Operating Temperature: -20�C to +70�C
Size: 15.9 cm (H) x 17.8 cm (W)
Weight: 0.9 kg
Repair: 3�7 Days
Availability: In Stock
Country of Origin: United States
FUNCTIONAL DESCRIPTION:
DS3820PSLP is an AC/DC Power Supply Module manufactured and designed by General Electric as part of the Mark IV Series used in GE Speedtronic Gas Turbine Control Systems. It�s designed to provide reliable and regulated DC power for industrial control systems. It converts AC mains input into a stable DC output, ensuring proper operation of downstream control electronics, sensors, and relays. The module includes built-in protections such as overcurrent, overvoltage, and surge suppression to safeguard both itself and connected devices. Internally, it contains stages for input conditioning, power conversion, isolation, output regulation, and monitoring, with components such as transformers, diodes, capacitors, and potentiometers. The module is housed in a robust enclosure with terminal strips, connectors, and a power switch, while ventilation openings ensure proper thermal management and prevent overheating. It also filters noise and spikes from the power supply, delivering clean and stable DC voltage for sensitive industrial electronics.
INPUT STAGE / PRE-CONDITIONING:
The Input Stage / Pre-conditioning of the AC/DC Power Supply Module is responsible for preparing the incoming AC power for safe and efficient conversion. It accepts the AC mains input and provides initial protection against voltage spikes, surges, and incorrect polarity. This stage typically includes fuses, transient voltage suppressors (TVS), EMI/RFI filters, and a bridge rectifier if needed, to convert AC to DC for the next stages. By filtering noise and suppressing transients at the input, it ensures that the sensitive downstream circuitry receives a stable and clean voltage, improving reliability and preventing damage to the module and connected devices.
EMI / NOISE FILTERING:
It is designed to suppress electromagnetic interference (EMI) and reduce electrical noise from both the AC mains and internal switching components. This stage typically uses common-mode chokes, capacitors (X and Y types), and other filter components to block high-frequency disturbances. By minimizing conducted and radiated noise, it protects sensitive downstream electronics, ensures compliance with regulatory standards, and improves overall system reliability and performance.
POWER CONVERSION & REGULATION:
The module is responsible for converting the conditioned input voltage into a stable and regulated DC output suitable for industrial control systems. This stage typically uses transformers, switching elements such as MOSFETs or IGBTs, and pulse-width modulation (PWM) controllers to efficiently transform voltage levels while maintaining regulation. Feedback loops monitor the output and adjust the conversion process to ensure consistent voltage under varying load conditions. This stage ensures that downstream electronics receive precise and reliable DC power, even in the presence of input fluctuations or load changes.
WOC offers the largest stock of replacement parts for GE Speedtronic Gas Turbine Control Systems and provides expert repair services for faulty boards. We supply unused, refurbished, and rebuilt parts, all backed by a comprehensive warranty, ensuring reliable performance and peace of mind. Our experienced team is available 24/7 to support OEM requirements and assist with any automation or control system needs. For pricing, availability, or repair inquiries, contact us by phone or email for prompt and professional assistance.
What is an AC/DC power supply module?
An AC/DC power supply module converts AC voltage from the mains into a stable DC voltage suitable for electronic devices and control systems. It ensures the reliable operation of connected equipment by providing regulated power. These modules are widely used in industrial, commercial, and automation applications.
What input voltages does it support?
Most modules accept a wide AC input range, typically 100�240 V at 50/60 Hz, making them compatible with global power standards. This flexibility allows the same module to be used in different countries without modification. Input pre-conditioning circuits also protect against voltage spikes and surges.
What types of protection does the module provide?
AC/DC power supplies include multiple protection features such as overcurrent, overvoltage, short-circuit, and thermal shutdown. These safeguards prevent damage to both the module and connected equipment. They ensure safe and reliable operation in demanding environments.
How stable is the DC output voltage?
The module provides a regulated DC output, maintaining a stable voltage under varying load conditions. Ripple and noise are minimized, typically below 50 mV, ensuring sensitive electronics operate without interference. This makes it suitable for precision control and automation systems.
