Close Loop Current Sensor

close loop current sensor
close loop current sensor

Ultra-High Accuracy

Utilizing Zero-Flux technology, typical accuracy is within ±0.1% FS, significantly superior to open-loop solutions.

Extremely Low Temperature Drift

Closed-loop compensation automatically offsets temperature effects, achieving a temperature drift of ≤50ppm/°C across the entire temperature range (-40°C to +85°C), ensuring excellent long-term stability.

Ultra-Wide Bandwidth

Fast dynamic response, with a bandwidth of 500kHz to over 1MHz, enables precise measurement of high-frequency currents (such as switching ripple in SiC/GaN inverters).

Ultra-Low Latency

Signal transmission latency is less than 1μs, making it suitable for real-time applications such as servo motor control and transient protection circuits.

No Hysteresis Error

Magnetic balancing eliminates core saturation and hysteresis effects, resulting in excellent repeated test consistency.

Ultra-Wide Dynamic Range

Supporting a dynamic range exceeding 1000:1, a single sensor covers multiple current sensing requirements.

Strong Anti-Interference Capability

The closed-loop structure naturally suppresses external magnetic field interference, resulting in excellent EMC performance.

Perfect linearity

Full-scale non-linearity error ≤0.1%

Low zero drift

Automatic zero calibration technology ensures initial offset voltage <±1mV, and long-term zero drift is negligible

型号额定输入测量范围输出电流供电电压精度带宽（KHZ）
WHB-AS5S6±0.1~1.5A0~±3.0A2.5±0.625V5V0.50%0-100
WHB-AS3S6±0.1~1.5A0~±3.0A1.65±0.625V3.3V0.50%0-100
WHB-SY15D4±10~50A0~±150A±4V±12~15V0.50%0-100
WHB-PS5S6±5~25A0~±80A2.5±0.625V5V0.70%0-200
WHB-PS3S6±5~25A0~±50A1.65±0.625V3.3V0.70%0-200
WHB-LX15D4±5~50A0~±150A±4V±12~15V0.50%0-100
WHB-LXA15D‍20±5~50A0~±100A±20mA±12~15V0.50%0-100
WHB-LSP5S6±10~25A0~±80A2.5±0.625V5V0.50%0-200
WHB-LSP3S6±5~25A0~±50A1.65±0.625V3.3V0.70%0-200
WHB-LSP5S6H±6~50A0~±19.2A2.5±0.625V5V0.70%0-200
WHB-ES3S6±10~75A0~±150A1.65±0.625V3.3V0.70%0-200
WHB-ES5S6H±10~75A0~±150A2.5±0.625V5V0.50%0-200
WHB-LA15D±25~100A0~±150A±25~50mA±12~15V0.50%0-100
WHB-AP15D±50~200A0～±600A±50~100mA±12~15V0.50%0-200
WHB-LA15D-S1±50~150A0~±225A±50~75mA±12~15V0.50%0-200
WHB-AP15D-S1±50~200A0~±600A±50~100mA±12~18V0.50%0-200
WHB-AP9S±50~200A0~600A+50~100mA+9~15V0.50%DC
WHB-BA15D-M±50~300A0~±750A±50~100mA±12~18V0.50%0-200
WHB-BA15D-E±50~300A0~±750A±50~100mA±12~18V0.10%0-200
WHB-BP15D‍100±50~200A0~±300A±50~100mA±12~15V0.50%0-200
WHB-BA5S6H‍±20~200A0~±300A2.5±0.625V5V0.50%0-200
WHB-BA5S6HM‍±20~200A0~±300A2.5±0.625V5V0.50%0-200
WHB-LTR15D‍±50~300A0~±900A±50~100mA±12~18V0.50%0-200
WHB-LTR5S2‍±25~100A0~±100A2.5±2.0V5V0.70%0-200
WHB-LTA15D100H‍±50~300A0~±900A±50~100mA±12~18V0.20%0-200
WHB-EB15D‍±50~400A0~±600A±50~100mA±12~18V0.50%0-200
WHB-LTB15D100‍H‍±200~500A0~±1500A±100mA±15~24V0.20%0-100
WHB-LFD15D‍-S1‍±150~1000A0~±1500A±100~200mA±15~24V0.20%0-150
WHB-SH15D‍±1000A0~±2000A±200mA±15~24V0.20%0-150
WHB-LF15D400‍T‍±2000A0~±3000A±400mA±15~24V0.20%0-150
WHB-C15D‍±25~50A0~±120A±25mA±12~15V0.50%0-200
WHB-LAH15D‍±25~50A0~±110A±25mA±12~15V0.50%0-200
WHB-LAH15D‍-SP1‍±25~100A0~±150A±25~50mA±12/±15V0.50%0-200
WHB-A4H15D‍±50A0~±75A±50mA±12~15V0.50%0-150
WHB-A5H15D‍±10~50A0~±110A±10~50mA±15V0.50%0-150
WHB-DS5S6‍±6~50A0~±150A2.5±0.625V5V0.70%0-200
WHB-DS3S6‍±6~50A0~±100A1.65±0.625V3.3V0.70%0-200
WHB-DSR3S6‍±5~50A0~±150A±0.625V3.3V0.70%0-200
WHB-LSK5S2‍HR±5~20A0~±20A2.5±2.0V5V0.50%0-100
WHB-LSK3S1‍HR‍±5~20A0~±20A1.65±1.0V3.3V0.50%0-100
WHB1000LFD15D200 – S6±1000A0~±1500A±200mA±15~24V0.20%0-100
WHB2000LF15D400S-S15±2000A0~±3000A±400mA±15~24V0.20%0-100
WHB-LHK15D‍100‍‍±100~200A0~±300A±50~100mA±12~15V0.50%0-100