Insulation Resistance Meter Design

Json


{
  "schematicConnections": {
    "connections": [
      {
        "from": "R1.P2",
        "to": "R2.P1",
        "net": "HV_Scaling"
      },
      {
        "from": "R2.P2",
        "to": "GND.GND",
        "net": "HV_Scaling"
      },
      {
        "from": "Signal_Input",
        "to": "R3.P1",
        "net": "Leakage_Sense"
      },
      {
        "from": "R3.P2",
        "to": "R6.P1",
        "net": "Leakage_Protection"
      },
      {
        "from": "R6.P2",
        "to": "IC2.NonInv",
        "net": "Leakage_Protection"
      },
      {
        "from": "IC2.Output",
        "to": "IC2.NonInv",
        "net": "Voltage_Follower"
      },
      {
        "from": "IC2.Output",
        "to": "R4.P1",
        "net": "OpAmp_Output"
      },
      {
        "from": "R4.P2",
        "to": "R5.P1",
        "net": "Resistor_Divider"
      },
      {
        "from": "R5.P2",
        "to": "GND.GND",
        "net": "Resistor_Divider"
      },
      {
        "from": "Divider_Node",
        "to": "IC3.AnalogInput",
        "net": "ADC_Input"
      },
      {
        "from": "Protection_Node",
        "to": "D1.Anode",
        "net": "Clamp"
      },
      {
        "from": "Protection_Node",
        "to": "D2.Anode",
        "net": "Clamp"
      },
      {
        "from": "IC3.SDA",
        "to": "MCU.SDA",
        "net": "I2C_Bus"
      },
      {
        "from": "IC3.SCL",
        "to": "MCU.SCL",
        "net": "I2C_Bus"
      }
    ]
  }
}
Connect R1 and R2
Leakage Current Measurement
Add Scaling Divider
Protection Circuit
Connect to ADC
R3
Resistance
100MΩ
R4
Resistance
100kΩ
R2
Resistance
500 Ω
R6
Resistance
10MΩ
R1
Resistance
500 Ω
R5
Resistance
100kΩ
D2
Not Recommended for New Designs
U2
D1
IC1
U1

No files yet

Documents

    Documents are markdown text files which describe project goals, capture details, or even simulation outputs.

    Assets

    No assets added.

    Efficient Olive Heat-Ray

    Efficient Olive Heat-Ray thumbnail
    Welcome to your new project. Imagine what you can build here.

    Properties

    Properties describe core aspects of the project.

    Pricing & Availability

    Distributor

    Qty 1

    Arrow

    $6.40–$13.37

    Digi-Key

    $5.83–$9.48

    LCSC

    $3.91

    Mouser

    $14.44

    Verical

    $9.57–$13.28

    Controls