Novel power supply sampling circuit and low -voltage circuit breaker thereof

• Main Authors: HU TIANQI, TAN SAI, JIA JUN, WANG YUNFEI, CHENG JIAN, ZHENG WENJUAN
• Format: Patent
• Language: Chinese; English
• Published: 13.03.2018
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The utility model discloses a power supply sampling circuit, including current transformer of the same kind, rectifier circuit, AD converting circuit, control circuit, signal collection circuit, voltage stabilizing circuit and auxiliary power circuit, current transformer passes through rectifier circuit and voltage stabilizing circuit output power supply, auxiliary power circuit exports power supply, control circuit is uploaded through AD converting circuit to signal collection circuit sampling rectifier circuit signal, control circuit obtains the sampled value according to the sampled signalwho uploads, detects auxiliary power circuit's operating condition and exports the work of control signal control voltage stabilizing circuit. The utility model discloses still provide and included novel power supply sampling circuit's low -voltage circuit breaker. The utility model discloses small, with low costs, measurement accuracy is high and power supply and measure reliably. 本实用新型公开了种新型供电采样电路，包括路电流互感器、整流电路、AD转换电路、控