Hall Effect Voltage Sensor

Hall Effect Voltage Sensor
Closed Loop Technology

Outline

J&D's JHVC Series is based on Closed-Loop Hall Voltage technology. The primary Current(Ip) generated from primary voltage(Up) and external resistance(Re) creates primary magnetic flux. The magnetic flux is connected to the magnetic circuit. The hall device in the air gapped magnetic core provides a proportioned voltage to the magnetic flux. The voltage is increased by a current amplifier and converted into a secondary current(Is). The secondary current(Is) multiplies as secondary winding turns. It sets off the primary magnetic flux. Therefore, the secondary current(Is) is exactly proportional to the primary current at any time. Output (Vm) is detected between secondary current(Is) and measuring resistance(Rm).

Feature

• Excellent accuracy and linearity
• Low response time and thermal drift
• High tolerance to external interference
• High bandwidth

Application

• Servo motor drive
• Static converters for DC motor drive
• Battery supplied application
• UPS
• Power supply for welding application