FHNA100 Series High-temperature AC-DC Power Converters
■FHNA series 100W high-temperature offline AC-DC power converters, specially designed for electronic equipment working in the harsh environment, can continuously work for 4,000 hours at shell temperature 150℃, 1,500 hours at shell temperature 175℃ and 700 hours at shell temperature 185℃. With features of being resistant to high temperature, impact and humidity, it is particularly suitable for being used as power supply system for petroleum prospecting logging tool, petroleum drilling instrument, geophysical detecting instrument, vehicles, telecommunication, network infrastructures, enterprise and high-performance calculation, etc.
■FHNA100 series 100W high-temperature AC-DC power converters use the latest thermal design and new semiconductor technology. The output power density is the same as the FHA100 series, but the service life is doubled. The designed output voltage includes 12V, 15V, 18V, 24V, 36V, 48V, 72V, 100V, 150V, 200V, 250V, 300V, 400V. The output can be either of them and combinations of any four voltages. MOUT is main output terminal and OUT1, OUT2 and OUT3 are auxiliary output terminals. During the use, the voltage outputted from main output terminal MOUT is most stable. The main output is isolated from the auxiliary output. The output power of the main output is required to be the largest output of the two. If the main output is greater than 36V, there can be no more than three outputs!
■FHNA100 series 100W high temperature AC-DC power converters’ AC input voltage range is up to AC180V ~ 340V, which is very suitable for oil logging, because the oil logging power supply cable’s resistance is up to 400 ohms. The downhole cable head voltage is generally required to be 220V AC. In order to make the module output 100W power, then 0.5A current is needed by the calculation with 90% conversion efficiency. In this case, the cable will need to consume 200V voltage, which requires at least 420V ground power supply voltage to deliver 100W power down. In the actual logging, sometimes the load of the downhole equipment is not constant, which causes AC-DC module’s input voltage to change with the change of load. As the power supply voltage cannot be frequently adjusted on the ground with the change of load, which requires AC-DC module bear an AC input of 420V in extreme conditions (with the load empty).
■Our FHNA100 series can only withstand 340V ac voltage at present, so we should pay close attention to the power supply current when the voltage is higher than 340V and estimate the cable head voltage of downhole power supply based on the cable situation, so as to ensure that the ac input does not exceed 340V.
■The mechanical dimensions of the FHNA100 are particularly suitable for small hole exploration in petroleum logging.
■The temperature resistance of all components adopted by FHNA100 is above +200℃. With the currently best thermal design, the temperature of elements and casing only rises by 9℃ in the condition with good heat radiation, thus it is able to steadily work at ambient temperature +175℃ for a long time. But when temperature of chip exceeds +204℃, overheat protection circuit of chip will be activated and it begins to reduce output power until zero at +210℃. When temperature lagged to +195℃, overheat protection circuit will rest and converter begins to output power again.
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FHNA100 Series 、 FHNA100 、 FHNA100--220S12—S12—S12—S12 、 model FHNA100-ACINSMOUT-SOUT1-SOUT2-SOUT3 、 FHNA100-ACINSMOUT-SOUT1-SOUT2-SOUT3 、 FHNA100-220S12-S24, |
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High-temperature AC-DC Power Converters 、 High Temperature AC-DC Power Converters 、 high-temperature offline AC-DC power converters |
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[ petroleum prospecting logging tool ][ petroleum drilling instrument ][ geophysical detecting instrument ][ vehicles ][ telecommunication ][ network infrastructures ][ enterprise ][ high-performance calculation ][ electronic equipment ] |
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Datasheet |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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June 11, 2022 |
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313 KB |
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