Circuit design of 20W (25W peak) multi-output DVD power supply
Summary:
The TOP245P design is ideal for DVD and set-top box applications. The P package eliminates the need for a heat sink and provides 20W/peak 25W output power at an ambient temperature of 50°C.
design feature
- Simple, low-cost, less component-based solution
- No need for a radiator
- Very low EMI – frequency modulation allows a simple EMI filter to meet EN55022B/FCC B requirements
- High efficiency, more than 75% efficiency at 90VAC input
- Very low no-load power consumption, less than 100mW at 230VAC input
- Very low standby power consumption, input power less than 1W at 230VAC input 0.5W load
- Excellent cross adjustment rate
- Differential mode and common mode surge withstand up to 3kV (EN 61000-4-5 standard)
Multi-output DVD power supply circuit diagram with output power of 20 W
See the uploading documentation for details (click to download)
Standards: IEC 62930 EN 50618 PPP 59074A
Approval: TUV SUD
Conductor: Class 5 Tinned Copper according to VDE0295/IEC60228
Insulation: Polyolefin Copolymer electron-beam coss-linked
Cores: Single core, Flat 2 cores
Sheath: Polyolefin Copolymer electron-beam coss-linked
Nominal Voltage: AC 1000/1000V, DC 1500V
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