Voltage Measurement Network
AssemblyPrecision resistor divider stepping down 120 V or 240 V line voltage to 0–3.3 V ADC input range, with high-impedance design. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Voltage Measurement Network
4 top-level lines as of r158116| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | HV Resistor Divider | smart-meter-hv-resistor-divider | 1× | 1 | · | part |
| 2 | Precision Resistors | smart-meter-voltage-precision | 1× | 1 | · | part |
| 3 | Voltage Low-Pass Filter | smart-meter-voltage-filter | 1× | 1 | · | part |
| 4 | Neutral Reference | smart-meter-neutral-reference | 1× | 1 | · | part |