Key facts
- Manuals
- 1
- Languages
- ZH
- Last added
- 2012-03-08
Featured TOPSwitch-FX manuals
TOP FX Microcontroller Switching Power Supply Manual
This document introduces the TOP FX series microcontroller switching power supply, which can be used in general and specialized power supplies, standby supplies, and power modules. It explains the external current‑limiting design, voltage‑feedforward technique, and the use of LT817A linear optocoupler feedback for stable regulation.
The manual details a multi‑output configuration with five rails (+30 V, +18 V, +5 V, +3.3 V, –5 V) and a standby power stage providing 5 V/2 A and 3.3 V/2 A outputs. Features such as soft‑start, dummy‑load‑free standby operation, and EMI mitigation are also covered. This manual is written in Chinese.
Covers: External Current Limiting 12V 30W Switching Power Supply · Multi‑Output 35W Set‑Top Box Switching Circuit · 5V and 3.3V 17W Standby Power Supply · Soft‑Start Circuit · Feedback and Voltage Regulation
Latest TOPSwitch-FX manuals
TOP FX Microcontroller Switching Power Supply Manual
User Manual 4 pages · 207 KB · ZHThe TOP FX manual describes a 12 V, 30 W microcontroller switching power supply, its circuit, specifications, and operation.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in TOPSwitch-FX manuals
What is the input voltage range of the TOP FX power supply?
The supply accepts an AC input voltage from 85 V to 265 V.
What is the maximum output power and efficiency?
It can deliver up to 30 W of output power with a full‑load efficiency of about 80 %.