Lab Qualifications - Leightner Electronics, Inc.
Resonant Power Supply
The power supply utilizes a resonant driver that employs the high voltage winding capacitance of the transformer to its advantage.
Advantages:
- 8 times less weight and 4 times smaller than a conventional power supply.*
- Sine wave operation reduces EMI and RFI.
- Operational frequencies up to 100 kHz.
- Efficiency is up to 95%.
- Over voltage and current protection.
- Lower EMI / RFI and switching loss due to zero volt switching.
- Winding capacitance is cancelled negating all high reactive currents.
- Design is “Magnetics” based which yields a far more robust and forgiving circuit than conventional methods.
Uses:
Suitable for any application that requires high voltage and high power, or lower voltage with very little noise.
Specifications for our 1kW unit:
- Dimensions: 3.5” x 8.5” x 8”
- Weight: 4lbs, 3oz.
- Power input: 115 VAC for 12V bias supply plus external DC supply.
- Power: up to 1 kW.
- Frequency: up to 100 kHz.
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Top trace is the resonant voltage across both FETs. Bottom trace is FET drain current. |
Resonant Driver |
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*Our 1 kW unit weighs 4.18 lbs. DC power supply by Kepco, model KLP 10-150 weighs 15 lbs. Total weight is 19.18 lbs. Comparison is to a competitor’s 1 kW unit, which weighs 150 lbs. 150/19.18 = 7.82 times lighter!