LEM LA 55-P CURRENT SENSOR, CLOSED LOOP, 70A, 1US
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- Manufacturer: LEM
- Newark Part No.: 01P0386
- Manufacturer Part No LA 55-P
- Accuracy: ± 0.65%
- Accuracy %: 0.65%
- Current Measuring Range AC: -70A to 70A
- Current Measuring Range DC: -70A to 70A
- Response Time: 1µs
- SVHC: To Be Advised
- Sensor Output: Closed Loop
- Supply Voltage DC Max: 15V
- Supply Voltage DC Min: 12V
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Thanks for your time. I am having a difficult time to understand the datasheet provided on the page. Do you guys have a more detailed explanation about this type of current transducer? For example, the circuit design of the connection about the current transducer and the test circuit.
Its working principle is explained below:
you need to supply it with +/- 15V, and you read on the sense wire a proportional current. that current should be directed towards a resistors (as given in datasheet)
The voltage developed across the resistor (current * resistance) is the proportional voltage which you can use in your circuit.
The secondary current, or sense current, has a scaling given in the datasheet. if the primary senses 50 Amps peak, then your secondary sense current is 50/1000 = 0.005Amps peak. when directed to a 100 ohm resistor (of sufficient wattage rating) the voltage is 0.005 * 100 = 0.5V.
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