source:Industry News Popular:adapter release time:2020-12-10 16:56:45 Article author:sznbone
The -ΔI detection circuit (45) installed on the secondary side circuit of the AC adapter (10A) will output a detection signal after detecting that the charging current (Ic) has fallen below the set current value. The voltage control circuit (42A) repeatedly executes the step of slowly decreasing the adapter voltage (V#-[ADP]) and the step of temporarily increasing the adapter voltage in response to the detection signal.
An AC adapter for charging a rechargeable battery built-in or installed in a main body is characterized by having a primary-side circuit that switches the input DC voltage applied to the primary coil of the transformer through a switch unit; The AC voltage induced on the secondary coil of the transformer is rectified and smoothed out of the secondary side circuit of the adapter voltage; the voltage control circuit that detects the change in the adapter voltage and outputs a voltage control signal; detects the flow through the secondary side circuit A constant current control circuit that outputs a constant current control signal for the charging current; a photocoupler that feeds the aforementioned voltage control signal and the aforementioned constant current control signal as a feedback signal to the aforementioned primary-side circuit; responds to the aforementioned feedback signal to perform switching control on the aforementioned switch unit The switch control circuit is characterized in that it has a detection device that is provided on the secondary side circuit and detects that the charging current decreases below the set current value before outputting a detection signal;
The aforementioned voltage control circuit repeats the operation of slowly lowering the aforementioned adapter voltage and temporarily increasing the aforementioned adapter voltage in response to the aforementioned detection signal.
Read recommendations:
30-500W LED Power Supply 30-500W Power Supply
24V21A LED Power Supply 24V Power Supply 21A Power Supply
MKA-571652420 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
Six situations and solutions that cause the whistling of switching power supplies.power supply price
Popular recommended products
200-500W Switching Power Supply
2020-08-2924-65W Switching Power Supply
2020-08-2912V2ASwitching Power Supply
2020-08-28MKD-571202000 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28MKA-571652420 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28EI-66 ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-28EI-57 ADAPTER LINEAR ADAPTOR Linear Power Adapter Switching Power Adapter INTERCHANGEABLE ADAPTOR Li
2020-08-28EI-48 ADAPTER LINEAR ADAPTOR Switching Power Adapter INTERCHANGEABLE ADAPTOR Linear Adapter
2020-08-28EI-41 ADAPTER AC ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Adapter
2020-08-28EI-35 ADAPTER AC ADAPTER SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-28ER42 High Frequency Transformer
2020-08-2712-36W POE POWER SUPPLY
2020-08-27Transformer,Power Transformer,Ring Power Transformer
2020-08-27Transformer,High Frequency Transformer,Frequency Transformer
2020-08-2712-24W Medical Switching Power Supply
2020-08-273-12W Medical Switching Power Supply 3W Switching Power Supply 12W Power Supply
2020-08-2745W PD Charger,45W Charger,PD Charger
2020-08-2736-90W Charger,36W Charger,90W Charger,40W Charger,50W Charger
2020-08-2724W USB Charger,24W Charger,USB Charger
2020-08-2724W 2USB Charger,24W Charger ,2USB Charger
2020-08-2710-24W Charger,24W Charger,10W Charger
2020-08-2730-500W LED Power Supply 30-500W Power Supply
2020-08-27Related Information
What are the conditions of use and maintenance methods for switching power supplies?
2022-05-21Some Frequently Asked Questions about Power Adapters
2022-05-20How to deal with the electromagnetic interference of switching power supply which is difficult in EM
2022-05-19Six situations and solutions that cause the whistling of switching power supplies.power supply price
2022-05-18Lightning Surge Test Method for Switching Power Adapters.adapter factory
2022-05-17Two common power adapter output overload protection methods.ADAPTOR price
2022-05-16Common fault maintenance skills of switching power supply
2022-05-14How should we choose the charger?
2022-05-13Power adapter expertise.CE ADAPTOR
2022-05-12How to solve the high temperature rise of switching power supply transformer?
2022-05-11The role of varistor in switching power supply
2022-05-10Structural characteristics and working principle of varistor
2022-05-09The role of varistor in switching power supply
2022-05-09What are the main components of switching power supply
2022-05-07Two ways for MOS devices to dissipate in high-power power supplies,CE ADAPTOR Processing
2022-05-06Several common insulation protection technologies for power adapters
2022-05-05What are the unique advantages of high frequency switching power adapter
2022-04-27What are the main components of switching power supply.China cnc plastic cutting
2022-04-26Troubleshooting method of switching power supply,CE ADAPTOR wholesale
2022-04-25How to use the power adapter correctly
2022-04-23What is the comparison between a charger and an adapter?
2022-04-23The optimal solution of drone power management solution!
2022-04-22Several common insulation protection technologies for power adapters
2022-04-21What are the unique advantages of high frequency switching power adapter
2022-04-20General Mechanism Analysis of Switching Power Adapter.ac power adapter wholesaler
2022-04-19Suppression method of low frequency ripple of switching power supply
2022-04-16Why is the power adapter making noise?
2022-04-15When the power adapter is in normal use, what is the normal temperature?
2022-04-1490% of people use the car charger incorrectly, are you using it right?CAR POWER SUPPLY sales
2022-04-13The difference between a power adapter and a voltage regulator
2022-04-12Popular recommended products
MKA-571652420 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-283-12W Medical Switching Power Supply 3W Switching Power Supply 12W Power Supply
2020-08-2724W USB Charger,24W Charger,USB Charger
2020-08-2718-25W Switching Power Supply
2020-08-28MKS-1401700H Switching Power Supply
2020-08-29Inductance & Coil
2020-08-2724W 2USB Charger,24W Charger ,2USB Charger
2020-08-2736-90W Charger,36W Charger,90W Charger,40W Charger,50W Charger
2020-08-27MKD-571202000 ADAPTER AC ADAPTER CE ADAPTOR UL ADAPTOR Linear Adapter
2020-08-28200-500W Switching Power Supply
2020-08-29MKS-1202000-36 Switching Power Supply
2020-08-2972-200W Switching Power Supply
2020-08-2910-24W Charger,24W Charger,10W Charger
2020-08-2724-36W Charger,36W Charger,24W Charger,30W Charger
2020-08-273-8W Charger,3W Charger,8W Charger,4W Charger,5W Charger,6W Charger,7W Charger
2020-08-27EI-41 ADAPTER AC ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Adapter
2020-08-28MKS-120200BS-36 Switching Power Supply
2020-08-2945W PD Charger,45W Charger,PD Charger
2020-08-27MKS-1203000EX Switching Power Supply
2020-08-29EI Power Transformer Power Transformer
2020-08-27ER42 High Frequency Transformer
2020-08-27Transformer,High Frequency Transformer,Frequency Transformer
2020-08-2724V1.5A 36W Switching Power Supply
2020-08-2912W 2USB Charger,2USB Charger,12W Charger,USB Charger
2020-08-273-100W PCBA power supply 3-100W Customized power supply 3-100W power supply
2020-08-2712-24W Medical Switching Power Supply
2020-08-2712-36W POE POWER SUPPLY
2020-08-27MKS-1201250HEU Switching Power Supply
2020-08-29MK-C1806028 MKA ADAPTER LINEAR ADAPTOR SWITCHING ADAPTOR Linear Power Adapter Linear Adapter
2020-08-2812VDC8A 96W power supply
2020-08-28