DC 12v Step up to 24v Converter Regulator 5A 120W Power Supply Adapter for Motor Car Truck Vehicle Boat Solar System etc.(Accept DC9-20V Inputs)
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- DC 12V to DC 24V Step Up Converter. (9-20V Wide Range Input) Max Current 5A 120W.
- Waterproof housing makes the converter ideal for use in a wide range of applications including vehicles, security systems, hospital equipment, telecommunications etc
- Built-in over-voltage, under-voltage, overload, over-heat and short circuit protection
- The length of the line is about 12CM, slim, small volume, easy installation.
- High quality and performance. 3 Year Warranty.
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DC 12v Step up to 24v Converter Regulator 5A 120W Power Supply Adapter for Motor Car Truck Vehicle Boat Solar System etc.(Accept DC9-20V Inputs) - Waterproof
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At the input, noise was dominated by the 81 kHz switching, appearing as a 160 mV p-p triangle wave, plus 100 MHz-range ringing at a lower amplitude. The switching frequency does not vary with load and is quite stable. To filter the input, I recommend two capacitor close to the input of the module (100 uF low ESR electrolytic, plus 100 nF ceramic). This is preceded by an inductor; 30-50 uH is fine. Finally, add another 100 uF capacitor where the raw input source is connected.
At the output, there was no noticeable ripple but the 100 MHz ringing was present, about 500 mV p-p. More problematic and easily detected on a receiver were spurs in the HF bands, spaced every 1 MHz. This was cured with a 100 nF capacitor at the output.Mounting the board on a ground plane with the filter networks close by is recommended. Once that's done, conducted emissions are pleasingly low.