The **PDA072B-24VG-R** is a high-efficiency constant voltage LED driver manufactured by **Phihong**. It is designed specifically for lighting applications that require a steady 24V DC supply. --- ### ## Technical Specifications The following table summarizes the core electronic characteristics of the device: | Parameter | Specification | | :--- | :--- | | **Output Voltage** | 24V DC | | **Output Power** | 72 Watts (Max) | | **Input Voltage Range** | 90 ~ 304V AC (Universal) | | **Output Current** | 3.0A (Max) | | **Efficiency** | > 88% at 230VAC | | **Power Factor** | > 0.9 | | **IP Rating** | IP67 (Waterproof/Dustproof) | | **Operating Temp** | -40°C to +60°C | --- ### ## Internal Electronic Features The PDA072B-24VG-R incorporates several sophisticated electronic sub-systems to ensure safety and stability: 1. **Active Power Factor Correction (PFC):** * It uses active circuitry to ensure the current waveform follows the voltage waveform, reducing harmonic distortion and improving energy efficiency across the power grid. 2. **Protection Circuitry:** * **Over-Voltage Protection (OVP):** Latching protection if output exceeds safe limits. * **Short Circuit Protection:** Auto-recovery mode once the fault is removed. * **Over-Temperature Protection:** Internal sensors throttle or shut down the unit if thermal limits are exceeded to prevent component melting. 3. **Isolation:** * The unit features high-voltage isolation between the AC input and DC output, typically rated for 3000V AC, ensuring user safety. 4. **EMI Filtering:** * Internal filters (capacitors and inductors) are used to comply with FCC Part 15 and EN55015 standards, preventing electromagnetic interference with nearby electronics. --- ### ## Wiring and Physical Interface The device is housed in a rugged plastic enclosure with pre-stripped wire leads: * **AC Input (3-Wire):** * **Black:** Line (Live) * **White:** Neutral * **Green:** Ground * **DC Output (2-Wire):** * **Red:** Positive (+) 24V * **Blue/Black:** Negative (-) Return --- ### ## Application Use Cases * **Architectural Lighting:** Powering 24V LED strips for coves or facades. * **Signage:** Backlighting for outdoor commercial signs. * **Industrial Automation:** Serving as a stabilized 24V power source for low-power sensors or controllers in harsh environments.