A current verification device and method
By combining a circuit structure that first boosts the voltage and then inverts it with a control unit, the problem of low accuracy in portable current verification devices is solved, achieving high-precision current verification and efficient power conversion, thus extending the device's operating time.
CN121863824BActive Publication Date: 2026-06-05NANJING RUIHONGSHENG POWER TECH CO LTD
1 Cites 0 Cited by
Patent Information
- Application Number
- CN202610323932.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-17
- Publication Date
- 2026-06-05
- Estimated Expiration
- 2046-03-17
AI Technical Summary
Technical Problem
Portable current calibration devices generally lack high accuracy and cannot meet the needs of power systems and industrial automation for high-precision current measurement.
Method used
The circuit structure adopts a step-up and then inverting approach. It uses an adjustable DC boost circuit and an adjustable inverter circuit, combined with a control unit to accurately verify the current. The DC voltage and AC voltage are regulated using the EG1164 chip and MOS power transistors, and a sampling feedback circuit is used for real-time verification.
Benefits of technology
It improves the accuracy and conversion efficiency of the current calibration device, extends the working time of the portable device, and realizes a wide range of adjustable AC power output.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses a current verification device and method, and belongs to the technical field of current verification. The device comprises a control unit, a direct current power supply, an adjustable direct current boost circuit, an adjustable inverter circuit and a sampling feedback circuit connected with the control unit. The adjustable direct current boost circuit boosts and adjusts the direct current power supply to obtain a direct current voltage. The adjustable inverter circuit is used for inverting and adjusting the direct current voltage to obtain an alternating current voltage. The sampling feedback circuit is used for collecting a sampling current passing through a device to be verified and sending the sampling current to the control unit. The control unit is used for judging the sampling current, adjusting the adjustable direct current boost circuit according to a judgment result to adjust the direct current voltage, or adjusting the on-off of a power tube in the adjustable inverter circuit according to the judgment result to adjust the alternating current voltage. The application adopts a circuit structure and a thought of boosting first and then inverting to realize multi-layer accurate control and improve verification accuracy.
Need to check novelty before this filing date? Find Prior Art