en:sympower
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+ | ====== SYMPOWER01A ====== | ||
+ | The module creating a symmetrical power supply for analog constructions with operational amplifiers (e.g. SDRXO1B receiver). The input voltage should be +12V or +5V and output __respectively__ -12V and +12V. | ||
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+ | ==== Construction solutions ==== | ||
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+ | === Charge pump === | ||
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+ | One of the possibilities, | ||
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+ | * [[http:// | ||
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+ | === __Power inverter__ === | ||
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+ | One of the limitations of the charge pump is the impossibility to obtain larger supply currents. The problem can be solved using a transformer and wiring, that will __convert__ the input DC voltage to AC. Given that the converted voltage can be of significantly higher frequency than the usual 50Hz, the size of the transformer, | ||
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+ | Moreover, in the case of input DC potential commuting sinusoidally on the transformer windings, the possibility of noise emission is considerably decreased compared to the conventional SMPS. | ||
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+ | Another advantage in using the transformer is, that the output power supply can be galvanically isolated from the input power supply. | ||
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en/sympower.txt · Last modified: 2013/07/24 21:44 (external edit)