This isolated primary-side regulated (PSR) flyback converter reference design provides dual +15-V outputs at 100 mA each. It was designed to provide bias power for a rotor coil excitation gate driver in motor/ inverter applications. The isolated output voltage is sampled from the primary-side flyback voltage eliminating the need for an optocoupler, voltage reference or third winding from the transformer for output voltage regulation. It offers a high level of integration and high efficiency in a compact form factor.
| Output voltage options | PMP22760.1 | PMP22760.2 |
|---|---|---|
| Vin (Min) (V) | 12 | 12 |
| Vin (Max) (V) | 15 | 15 |
| Vout (Nom) (V) | 15 | 15 |
| Iout (Max) (A) | .1 | .1 |
| Output Power (W) | 1.5 | 1.5 |
| Isolated/Non-Isolated | Isolated | Isolated |
| Input Type | DC | DC |
| Topology | Flyback- Non Sync | Flyback- Non Sync |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
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Design file that contains information on physical board layer of design PCB
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | Dual-Output Bias Power Supply Reference Design for Inverter and Motor Drive Appl | PDF | HTML | Mar. 24, 2021 |
| Product overview | Isolated Power Topologies for PLC I/O Modules and Other Low-Power Applications | PDF | HTML | Nov. 09, 2022 |
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