Project Overview
The 9V 1A Switch Mode Power Supply (SMPS) is a compact and efficient AC-to-DC power converter designed to provide a regulated 9V DC output at up to 1A from a universal AC input. Utilizing an isolated flyback topology, it ensures high efficiency, excellent electrical isolation, and reliable performance. Built-in protection features safeguard both the power supply and connected devices, making it ideal for consumer, industrial, and embedded electronic applications.
Key Features
Universal AC input: 85–265V AC, 50/60Hz
Stable 9V DC / 1A regulated output
Maximum output power of 9W
Isolated flyback converter design
High efficiency with low standby power consumption
Low output ripple and noise
Short-circuit protection (SCP)
Over-current protection (OCP)
Over-voltage protection (OVP)
Compact and lightweight design
Reliable continuous operation
Technical Specifications
Parameter | Specification |
Input Voltage | 85–265V AC, 50/60Hz |
Output Voltage | 9V DC ±5% |
Output Current | 1A (Max) |
Output Power | 9W |
Topology | Isolated Flyback SMPS |
Efficiency | Up to 85% |
Protection | OCP, OVP, SCP |
Operating Temperature | -20°C to +60°C |
Cooling | Natural Air Cooling |
PCB Type | FR-4 Double Layer |
Applications
Wi-Fi Routers and Modems
CCTV Cameras
Audio Equipment
Embedded Systems
Arduino and Microcontroller Projects
IoT Devices
LED Lighting Controllers
Networking Equipment
Consumer Electronics
Industrial Control Systems
Package Includes
1 × 9V 1A SMPS Power Supply PCB
1 × Fully Assembled Electronic Circuit