1. Introduction
Thank you for choosing the Creadvent 120W DC Linear Stabilized Power Supply. This high-performance power supply is designed to provide clean, stable DC power for sensitive electronic equipment such as hard disk boxes, NAS devices, and audio circuits. Featuring a precision linear regulated design, ultra-low ripple, and high-quality components, it ensures optimal performance and longevity for your devices. This manual provides essential information for safe operation, setup, and maintenance.
2. Safety Information
- Always connect the power supply to a grounded AC outlet.
- Ensure the input voltage switch (AC230V / AC115V) is set correctly for your region before connecting to mains power. Incorrect voltage selection can damage the unit.
- Do not expose the unit to moisture or extreme temperatures.
- Do not open the casing. There are no user-serviceable parts inside. Refer all servicing to qualified personnel.
- Ensure proper ventilation around the unit to prevent overheating.
- Disconnect power before making any connections or disconnections to the output.
3. Package Contents
- 1 x Creadvent 120W DC Linear Stabilized Power Supply
- 2 x DC Output Cables (5.5 * 2.5mm plugs)
- 1 x AC Input Power Cord
4. Product Overview
The Creadvent 120W DC Linear Stabilized Power Supply is engineered for superior performance. Key features include:
- 120W Powerful Power: Delivers stable and sufficient power for demanding applications.
- Multi-stage Filtering: Incorporates advanced filtering for ultra-low ripple and noise.
- High-quality Craftsmanship: Built with efficient heat dissipation in mind.
- A Core Toroidal Transformer: Utilizes pure copper enamel wire for high efficiency, low heat generation, and low magnetic leakage.
- Precision Reference & OPA1611: Features a high-end OPA1611 operational amplifier with ultra-low distortion (0.000015%) and a constant current diode for very low noise.
- CLC Circuit: Employs red ring inductors and Nikon filter capacitors to eliminate high-frequency noise and fluctuations, enhancing circuit stability and accuracy.
- Dual High-Current Aviation Output Interfaces: Provides two independent DC outputs.
5. Setup Instructions
- Unpacking: Carefully remove all components from the packaging. Inspect for any signs of damage.
- Input Voltage Selection: Locate the input voltage selector switch (usually on the rear panel). Ensure it is set to match your local AC mains voltage (AC230V or AC115V). Failure to do so may result in severe damage to the unit and connected devices.
- Placement: Place the power supply on a stable, flat surface with adequate ventilation. Do not block the ventilation slots.
- Connect AC Power: Connect the supplied AC input power cord to the power supply's AC inlet and then to a grounded wall outlet. Do not power on the unit yet.
- Connect DC Output: Connect one or both of the supplied DC output cables (5.5 * 2.5mm plugs) to the aviation output interfaces on the rear panel of the power supply. Connect the other end(s) to your target device(s). Ensure the polarity is correct for your device.
6. Operating Instructions
- Power On: After ensuring all connections are secure and the input voltage is correctly set, press the power button on the front panel to turn on the power supply.
- Voltage Output: The power supply provides a fixed DC output voltage as specified by the model variant (e.g., Dual DC 5V, 9V, 12V, 15V, 19V, or 24V). Verify that the selected model matches the voltage requirements of your connected device(s).
- Monitoring: While this unit does not feature an external display for voltage/current, its stable linear design ensures consistent output.
- Power Off: To turn off the power supply, press the power button again. Disconnect the AC power cord from the wall outlet if the unit will not be used for an extended period.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Do not use liquid cleaners or solvents.
- Ventilation: Periodically check that the ventilation slots are free from dust and obstructions.
- Storage: When not in use, store the power supply in a cool, dry place away from direct sunlight and moisture.
- No User Serviceable Parts: Do not attempt to open or repair the unit. This will void the warranty and may pose a safety hazard.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power/Unit does not turn on | AC power cord not connected; Incorrect input voltage selection; Faulty AC outlet. | Ensure AC cord is securely connected. Verify input voltage switch setting. Test AC outlet with another device. |
| No output voltage | DC output cable not connected properly; Connected device is faulty or drawing too much current. | Check DC cable connections. Disconnect device and test power supply independently (if possible with a multimeter). Ensure device's power requirements do not exceed the power supply's capacity. |
| Unit feels excessively hot | Poor ventilation; Overload. | Ensure ventilation slots are clear. Reduce load on the power supply. Operate in a cooler environment. |
| Unusual noise or smell | Internal component failure. | Immediately disconnect power. Do not use the unit. Contact support. |
9. Specifications
| Parameter | Value |
|---|---|
| Model Number | SPD-120PRO |
| Brand Name | Creadvent |
| Input Voltage | AC230V / AC115V (Selectable) |
| Output Voltage Options | Dual DC 5V, Dual DC 9V, Dual DC 12V, Dual DC 15V, Dual DC 19V, Dual DC 24V |
| Maximum Power | 120W |
| Channels | 2 (Dual Output) |
| Output Plug Style | 5.5 * 2.5mm |
| Dimensions (L x W x H) | 25cm x 13cm x 6cm |
| Transformer Type | A Core Toroidal Transformer (Pure Copper Enamel Wire) |
| Operational Amplifier | OPA1611 (Ultra-low distortion 0.000015%) |
| Filtering | Multi-stage CLC circuit with red ring inductors and Nikon filter capacitors |
10. User Tips
- Current Output: The total maximum power output is 120W. To determine the maximum current for your specific voltage, divide 120W by the output voltage. For example, a 5V output can provide up to 24A (120W / 5V), a 12V output up to 10A (120W / 12V), and a 24V output up to 5A (120W / 24V). Ensure your device's current draw does not exceed this limit.
- Noise Reduction: For optimal audio performance, ensure all audio components are properly grounded and use high-quality shielded cables. The power supply's low-noise design is a significant advantage for sensitive audio equipment.
- Component Quality: The use of an 'A core' toroidal transformer and OPA1611 op-amps contributes to the unit's superior performance. Understanding these components can help appreciate the quality of the power delivery.
11. Warranty and Support
This product comes with a standard manufacturer's warranty. Please refer to your purchase documentation for specific warranty terms and conditions. For technical support or service inquiries, please contact your retailer or the manufacturer directly. Keep your proof of purchase for warranty claims.
