In the design of high-frequency isolated photovoltaic grid-connected inverter and non-isolated photovoltaic grid-connected inverter, the DC current injected into the grid must be controlled according to different international standards (IEC 62109, IEEE 1547, IEC 61727， UL 1741 ...) (10 mA ... 1 A).
| current measurement | current sensor accuracy @25℃ | current sensor linearity error | current sensor response time |
| requirement | 1.0% | 1.0% | 5μS |
| open loop & closed loop current sensor | primary current range | maxmium current range | supply voltage | accuracy @25℃ | installation method | image |
| STK-PL | 10…50A | 2*IPN | +5V | 0.8% | PCB |
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| STK-HD | 5…20A | 2*IPN | +5V | 0.8% | PCB |
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| STK-BS | 50…6000A | 1.5…3*IPN | ±15V | 1.0% | PCB |
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