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Texas Instruments UCC28711 | Demoboard TIDA-00440
Leakage Current Measurement Reference Design for Determining Insulation Resistance
Details
| Topologie | Sperrwandler |
| Eingangsspannung | 150-800 V |
| Ausgang 1 | 500 V / 0 A |
| IC-Revision | E2 |
Beschreibung
This TI design provides a reference solution to measure Insulation Resistance up to 100MΩ. It has an on-board isolated 500Vdc power supply and an isolated signal conditioning circuit to measure the leakage current. This design is useful to find leakage due to insulation breakdown in transformer and motor windings.
Eigenschaften
- Leakage current measurement circuit with option for: Programmable Current Sense Amplifier and Switchable Shunt Resistors
- Range of measurement: 0 to 100MΩ with accuracy of 5% (Un-calibrated)
- Test voltage level derived from IEEE 43-2000 ("Recommended Practice for Testing
- Insulation Resistance of Rotating Machinery")
- On-board Isolated 500V Power Supply to measure the insulation resistance
- Provision for Calibration Resistor on board
- Hardware support for Start-of-Frame Detect allows implement IEEE1588 PTP
Typische Anwendungen
- Solar Inverters
- Transformers
- Industrial Drives
- Servo Drives
- Variable Speed AC/DC Drives
Weiterführende Informationen
Artikeldaten
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | Vin | VOut1 (V) | IOut1 (A) | VOut2 (V) | IOut2 (A) | Vaux (V) | fswitch (kHz) | L (µH) | NPRI : NSEC : NAUX | ISAT (A) | VT (V (AC)) | L (mm) | W (mm) | Montageart | Bauform | Pins | Reihen | H (mm) | G (mm) | Gender | Typ | IR (A) | Verpackung | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 750342773 | SPEC | 5 Dateien | Transformer | 10 - 20 V (DC) | 6 | 0.4 | 6 | 0.4 | – | 250 | 60 | – | 2.9 | 6000 | 15.7 | 22.1 | THT | EPW15 | – | – | 23.3 | 3.2 | – | – | – | Tray | ||
 | 750342792 | SPEC | 4 Dateien | MID-OLTI Offline Flyback Transformers for Texas Instruments | 71 - 601 V (AC) | 250 | 0.025 | 250 | 0.025 | 15 | 70 | 736 | 1:2.88:2.88:0.18 | – | 2500 | 17.96 | 20.3 | THT | EE16/8/5 | – | – | 14.3 | 3.5 | – | – | – | Tray | ||
 | 61300211121 | SPEC | – | 6 Dateien | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | – | – | – | – | – | – | – | 5.08 | – | THT | – | 2 | Single | – | – | Pin Header | Gerade | 3 | Beutel |
| Artikel Nr. | Datenblatt | Simulation | |
|---|---|---|---|
| 750342773 | SPEC | |
| 750342792 | SPEC | |
| 61300211121 | SPEC | – |
| Muster |
|---|
| Artikel Nr. | Datenblatt | Simulation | Downloads | Produktserie | Vin | VOut1 (V) | IOut1 (A) | VOut2 (V) | IOut2 (A) | Vaux (V) | fswitch (kHz) | L (µH) | NPRI : NSEC : NAUX | ISAT (A) | VT (V (AC)) | L (mm) | W (mm) | Montageart | Bauform | Pins | Reihen | H (mm) | G (mm) | Gender | Typ | IR (A) | Verpackung | Muster |
|---|