Summary:
2.75W constant voltage / constant current (CV / CC) universal input charger power supply circuit diagram, the design uses Power Integrations LinkSwitch series product LNK613DG. This design is ideal for mobile phone or similar USB charger applications, including mobile phone battery chargers, USB chargers or any application with constant voltage/constant current characteristics.
design feature
- A revolutionary control concept that enables a low component count and low cost solution
- Primary side control eliminates secondary side controllers and optocouplers
- Constant pressure (CV) accuracy: ± 5%
- Constant current (CC) accuracy: ±10%
- Overheat protection with hysteresis recovery ensures PCB temperature is safe under all conditions
- Automatic restart: output short circuit and open loop protection
- Extremely energy efficient
- Average efficiency over the entire load range: 74% (Energy Star 2.0 requires 64%)
- No-load input energy consumption: less than 40 mW at 230 VAC input
- Easily meet the following standard requirements:
- Class B Conducted EMI Requirements for EN55022 and CISPR-22 (EMI Margin >10 dBμV)
- IEC 61000-4-5 Level 3 AC Surge and ESD withstand
- Meets <5 mA battery discharge requirements
2.75W constant voltage / constant current (CV / CC) universal input charger power supply circuit diagram
See the uploading documentation for details (click to download)
Application fields of solar panels:
1. User solar power supply: (1) Small power supply ranging from 10-100W, which is used for military and civilian life in remote areas without electricity, such as plateaus, islands, pastoral areas, frontier posts, etc., such as lighting, TV, tape recorders, etc.; (2) 3 - 5KW home roof grid-connected power generation system; (3) Photovoltaic water pump: solve deep water well drinking and irrigation in areas without electricity.
2. Transportation field: such as navigation lights, traffic/railway signal lights, traffic warning/sign lights, Yuxiang street lights, high-altitude obstruction lights, highway/railway wireless telephone booths, unattended road shift power supply, etc.
3. Communication/communication field: solar unattended microwave relay station, optical cable maintenance station, broadcast/communication/paging power system; rural carrier telephone photovoltaic system, small communication machine, GPS power supply for soldiers, etc.
4. Petroleum, marine, and meteorological fields: cathodic protection solar power systems for oil pipelines and reservoir gates, domestic and emergency power supplies for oil drilling platforms, marine testing equipment, meteorological/hydrological observation equipment, etc.
5. Lamp power supply: such as garden lamps, street lamps, portable lamps, camping lamps, mountaineering lamps, fishing lamps, black light lamps, rubber tapping lamps, energy-saving lamps, etc.
6. Photovoltaic power station: 10KW-50MW independent photovoltaic power station, wind-solar (firewood) complementary power station, various large parking plant charging stations, etc.
7. Solar buildings: Combining solar power generation with building materials will enable large buildings in the future to achieve self-sufficiency in electricity, which is a major development direction in the future.
8. Other fields include (1) Supporting cars: solar cars/electric cars, battery charging equipment, car air conditioners, ventilation fans, cold drink boxes, etc.; (2) Solar hydrogen production plus fuel cell regenerative power generation system; (3) Sea water Power supply for desalination equipment; (4) Satellites, spacecraft, space solar power plants, etc.
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