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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MAXQ3180-RAN+ датащи(PDF) 30 Page - Maxim Integrated Products |
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MAXQ3180-RAN+ датащи(HTML) 30 Page - Maxim Integrated Products |
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30 / 101 page  Low-Power, Multifunction, Polyphase AFE 30 ______________________________________________________________________________________ Operating Mode Register 1 (OPMODE1) (0x002) (continued) BIT NAME FUNCTION These bits determine how power is calculated on each of the three phases. 00 PA = IA x VA PB = IB x VB PC = IC x VC Use this configuration when the load is connected in a wye arrangement and neutral is connected to MAXQ3180 ground, or when the load is connected in a delta arrangement and isolated voltage and current sensors are used. This arrangement measures power in each load branch rather than power in each source branch. 01 PA = IA x VA PB = IB x (-VC) PC = IC x VC Use this configuration when the load is connected in a four-wire delta arrangement. In this arrangement, the BC leg is split and VB-N is expected to be equal to -VC-N. Voltages are referenced to neutral. 10 PA = IA x VA PB = IB x (-VA - VC) PC = IC x VC Use this configuration when the load is connected in a four-wire wye arrangement, but only two voltage sensors are available. When connected in this way, phase B is assumed to be ground. 1:0 CONCFG 11 PA = IA x VA PB = IB x (VA - VC) PC = IC x VC Use this configuration when the load is connected as a three-wire delta and it is desired to measure the voltage and current inside the delta legs, but to calculate the power in each of the source circuits. When connected this way, source phase B is considered ground. V I II V V I I I V V V I I V V V I V I II V N V I I V V I |
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