supremeOne

VIPer16-based, 4W non-isolated, wide input voltage range switching power supply

STEVAL-ISA071V2

Overview

The STEVAL-ISA071V2 demonstration board is a non-insulated SMPS capable of delivering a 4 W output over a wide input voltage range and is designed for a mains application requiring -5 V and +7 V, referred to neutral.

The basic concepts used in this design can also be applied for higher power outputs or different voltage ranges.
The SMPS generates outputs of 5 V and 12 V, referred to the output marked -5 V. The 5 V output is dedicated to supplying an MCU. This configuration allows the use of the MCU to directly drive a Triac (referred to neutral).
The 12 V output is used to supply additional circuits (relays, OA, etc.).

Main features

Input:
- V_IN: 85 - 264 Vrms
- f: 45 - 66 Hz
Output:
- 12 V_DC± 10% (referred to -5 V), 160 mA
- -5 VDC ± 4%, 400 mA
Maximum output power: 4 W (range is up to 6 W for EU)
Standby power: 35 mW at 230 VAC
Short-circuit protected
Insulation: non-insulated; N connected to output GND
EMI: in accordance with EN55022 class B
RoHS compliant

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-06-20 10:56:37

Does anyone know how to repair the power board of the E+H electromagnetic flowmeter? ? ?
The product I bought from someone else is broken and the fuse keeps going out. Does anyone have experience in this area? Please give me some help!
Asking for help: Colleagues working on antennas, please help me
I am a fresh graduate and recently signed a job. I was originally applying for software. But later the HR said that I was assigned to the antenna department to do mobile phone antenna testing, but I w
LM3S8962 Why does the system enter a fault interrupt after deleting an unused array?
It feels strange, when I delete a custom array that is not used in the project, the system cannot run normally and directly enters Falut Interrupt. I really don't know what's going on, please help! !
PIC16f630 beginner's question
StartFragmentHey guys, I'd like to ask, how do I write a program in C language to light up a LED at port RC0? #include 16f630.hdelay(int x){int a,b;for(a=x;a0;a--)for(b=101;b0;b--);}void main(){ while
Test your engineering skills! Design a transistor characteristic tracer
[font=微软雅黑]The focus of the "RIGOL Cup Electronic System Design Competition" is to cultivate college students' engineering practice ability, so that students can start from the actual situation and ma
What software and downloader can be used to download the hex file to the msp430 board
I have a question. I only have a hex file and a board for msp430. What software and downloader can I use to download the hex file to the board?

Datasheet More

Circuits More