Summary:
The non-isolated flyback converter design uses the TNY279 device to provide two output voltages: -5 V/2A- and 12 V/250 mA (continuous), 600 mA (peak).
design feature
- Low cost and low component count
- No impedance from the neutral to the output RTN, ideal for driving triacs
- No-load power consumption <150 mW at 230 VAC AC input
- Both outputs have good cross regulation
- The highest ambient temperature reaches 70 °C
- Compliant with CISPR-22 Class B/EN55022 B EMI limits, no need to input common mode chokes
13W (17.2 W peak) circuit diagram of non-isolated power supply
See the uploading documentation for details (click to download)
Industrial Main Board Cable:SCSI,D-SUB,DVI,Wire to Wire ,RJ45...
There are five types of main board power line interface, and different external devices correspond to different interfaces. Different interfaces and their connecting pins are also different. For example, the pin of the main power supply is 24 pins, and the hard disk drive is 5 pins.
1. 20pin + 4Pin interface: it is a common interface combination, in which 20pin is the main power interface and 4Pin is the auxiliary power supply interface.
2. 5pinsata interface: special interface for power supply of hard disk and optical drive.
3. 6pin? PCI? Express connector: a special interface for independent graphics power supply.
4. 4Pin connector: it is a kind of floppy disk power connector, which is used to power the floppy drive equipment.
5. 4Pin power interface: optical drive, old IDE hard disk and peripheral hardware power supply interface.
Industrial Main Board Cable
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