source:Industry News Popular:adapter release time:2021-06-02 14:55:52 Article author:sznbone
| No Output | ||||
| No. | Reason | Checking Point | Troubleshooting | Remark |
| 1 | Power cord not well connected | Fuse open or not? | Change to same fuse with internal fuse | Pay attention to inrush current of the fuse |
| Power cord misconnected? ACL or ACN misconnect to FG? | ACL/CAN connect to L/N properly | |||
| 2 | Input voltage mistake | If model with 115/230 places to right place? | Switch to right place | |
| 3 | Wiring erroe or loose | If connect to load properly? Wrong polarity? | Connect output +V/-V to right place | |
| Terminal or connector loose? | Fasten screw or confirm connector normal | |||
| If short circuit with connecting wire? | Confirm good insulation with connecting wire | |||
| 4 | OVP | Output voltage too high or over adjustable resistor range? | Power off, and adjust adjustable resistor to middle place, and power on after 1 minute | Normally the range of adjustable resistor is 240° |
| 5 | OCP | If something causes over current or sudden big current? | Check rated output current and actual current | |
| 6 | OTP | If temperature too high and over the highest temperature limit? | Power off and cool at ambient temperature, power on after 30 minutes, and keep operating at proper environment. | Use outer cooling to shorten power-on waiting time |
| 7 | Congeal on power supply | If there is water or environment temperature becomes high suddenly? | Stay far away from water and keep operating at steady environment. | Easy to congeal when temperature change suddenly |
| Output Abnormal(Too high, too low or unstable) | ||||
| No. | Reason | Checking Point | Troubleshooting | Remark |
| 1 | Output voltage too high | Output voltage of adjustable resistor too big? | Adjust output voltage anticlockwise to proper place | |
| If connect other power supply to same load? | Change load line and confirm no higher voltage than output voltage of the power supply | |||
| 2 | Output voltage too low | If output voltage lower than rated value?If wave form distortion of output voltage? | Measure input voltage and confirm input voltage and wire If yes, change to AVR | Confirm 115/<, SPAN>230 switch place right or not |
| 3 | Output voltage set too low | Output voltage of adjustable resistor set too low? | Adjust output voltage clockwise to a little higher | |
| 4 | Output wire not right | If output wire too thin, too long? Connector or terminal not good or loose? | Change to thicker or shorter wire, or check connector or fasten screw | Confirm output voltage(not on load) choose proper wire based on wire pressure table |
| 5 | OCP | If output current too big and over rated current? | Measure actual output current and confirm within spec value | |
Read recommendations:
Precision 12V1.8A Switching Power Supply Module bare board 12v22w Switching power supply board
Commonly used offline power adapter functions and basic requirements
The latest article
S series S1000 energy storage mobile power supply
2021-03-18S series S900 energy storage mobile power supply
2021-03-18New ABS Fire Shell Gigabit ESD Protection POE Powered Adapter Power Supply 90W POE Injector
2021-03-18ShenZhen Factory OEM ODM AC DC Open Frame Switching Power Supply Manufacturer
2021-03-18130W bare board power supply
2021-03-1880W bare board power supply
2021-03-1872W bare board power supply
2021-03-1872W bare board power supply
2021-03-1860W bare board power supply (54V)
2021-03-1836W Open Frame Power Supply
2021-03-1836W Open Frame Power Supply
2021-03-1830W Open Frame Power Supply
2021-03-1810W Open Frame Power Supply
2021-03-187W Open Frame Power Supply
2021-03-187W Open Frame Power Supply
2021-03-18Amplifier + power supply
2021-03-1060W single power supply
2021-03-10Amplifier + power supply
2021-03-1027W single power supply
2021-03-10Amplifier + power supply
2021-03-1030W power amplifier power supply
2021-03-10144W power amplifier power supply
2021-03-1048W desktop
2021-03-1048W desktop
2021-03-1024W U.S. regulations
2021-03-1018W U.S. regulations 18W Wall-Mounted Power Adapter
2021-03-1018W U.S. regulations18W Wall-Mounted Power Adapter
2021-03-1018W European standard Power Adapter
2021-03-1018W European standard Power Adapter
2021-03-1018W U.S. regulations18W Wall-Mounted Power Adapter
2021-03-10The latest article
What are the types of mobile phone chargers and their functions?
2022-05-21Advantages of switching power adapters
2022-05-21Five core functions that the power adapter can achieve.adapter manufacture
2022-05-20Analysis of the importance of power adapters for notebooks.adapter Processor
2022-05-20Details of switching power supply in maintenance
2022-05-19Understand the precautions of the power adapter and be an expert in electricity safety
2022-05-19This is how the EMC interference of the switching power supply is generated.adapter wholesaler
2022-05-18The relationship between the nominal voltage and current of the power adapter.power adapter price
2022-05-18Five basic functions of notebook power adapters.adapter wholesaler
2022-05-17Lightning surge immunity test method.power adapter price
2022-05-17Switching power supply ripple source and control
2022-05-16Level 6 energy efficiency standard power adapter T series
2022-05-16Children sleeping with pacifiers are prone to tooth decay
2022-05-16Six methods to deal with the heating problem of switching power supply transformer
2022-05-14The principle of flyback switching power supply
2022-05-14Types of thermal protection for power adapters.adjustable power adapter
2022-05-13Summary of common faults of LED switching power supply
2022-05-13The power transistor should be used like this in the power adapter
2022-05-124 modulation methods of switching power supply
2022-05-12Some little knowledge about switching power supply
2022-05-11Laptop Power Adapter Troubleshooting Steps
2022-05-119 classification methods of switching power supply
2022-05-10Advantages and disadvantages of switching power supply current mode
2022-05-10Advantages and disadvantages of switching power supply current mode
2022-05-099 classification methods of switching power supply
2022-05-09Characteristics and working methods of PFC regulated switching power supply
2022-05-07Six maintenance rules for drone lithium batteries.manual charger power adapter
2022-05-07Reasons for Inrush Current in Switching Power Supply Design.adjustable power adapter
2022-05-06The optimal solution of drone power management solution!12w acdc power adapter
2022-05-06Characteristics of Switching Power Adapter Transient Loads
2022-05-05About
Product
Process
News
Recruitment
中文
Online consultation
Online map
中
