Transient high-current signal generator
A signal generator and high-current technology, which is applied in circuit breaker testing, electrical measuring instrument parts, instruments, etc., can solve problems such as complex implementation methods, large error in test results, and inaccurate test results.
Inactive Publication Date: 2008-02-20
吴桂初
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The above-mentioned power supply device uses a voltage regulator to adjust the voltage output and then transforms the output through a transformer, so this implementation method is relatively complicated, and the internal resistance of the test object can easily affect the output sinusoidal large current signal, causing the sinusoidal large current signal to fluctuate. Larger, it is necessary to readjust the voltage regulator to obtain a suitable sinusoidal high current signal, which leads to a relatively large error in the adjustment test results, the test results are not very accurate, and the adjustment is very troublesome
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] Referring to Figure 2, it can be seen that the output voltage of the controllable power supply is sent to the RC charging loop, and the RC charging loop charges the capacitor and is adjusted by the overcharging branch. , due to the external load, the wire itself will have resistance, which is impossible in fact, and can only perform RLC oscillation) to generate a sinusoidal large current signal.
[0016] Referring to Fig. 3, it can be seen that diode D1, diode D2, diode D3, and diode D4 form a bridge rectifier circuit, in which contacts 2 and 4 are connected to the two output contacts of the adjustable power supply L, and contact 1 is connected to the charging switch S1. The charging switch S1, resistor R1, and capacitor C1 are connected in series to form an RC charging circuit. The adjusting resistor R3 is connected in series with the adjusting switch S2 and then connected in parallel with the capacitor C1 to form an overcharge protection branch, which is connected in p...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The utility model relates to a signal generator, in particular to a signal generator for instant large current, comprising a controlled power supply, two output electrodes, a resistor, a capacitor, a charging switch, an inductor and a discharge switch. The utility model is characterized in that the controlled power supply, the resistor, the capacitor and the charging switch are serially connected to form a controlled RC charging circuit, two ends of the capacitor is respectively connected with the inductor and the discharging switch, the other end of the inductor and the discharging switch is respectively connected with two output electrodes, the capacitor, the inductor, a circuit induction resistor and the discharging switch are constructed to be a controlled RLC oscillation circuit, after the capacitor is charged by the RC charging circuit, the capacitor is discharged in the RLC oscillation circuit, which is formed to be a RLC oscillation, and a sine large current signal is generated. The structure of the utility model has advantages of improving the signal stability and the precision generated from the signal generator, enabling convenient adjustment of the signal generator, shortening the response time and reducing the energy consumption of the signal generator.
Description
technical field [0001] The invention relates to a signal generator, in particular to an instantaneous large current signal generator. Background technique [0002] The sinusoidal current generator currently used on the test platform of high-current components (referring to components used in a high-current environment) adjusts the voltage output through a voltage regulator, and outputs a sinusoidal current signal for the second time after being transformed by a transformer. Provided to the test platform. The following is an example of a test bench for testing the instantaneous characteristics of molded case circuit breakers. The test method adopted by the molded case circuit breaker test bench can be seen from Figure 1. Firstly, the voltage output is adjusted by two autovoltage regulators TY1 and TY2. , and then output a small voltage and high current test signal for the second time after the transformation of the high-power transformer B. Here, two self-coupling voltage r...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/28G01R31/327
Inventor 吴桂初
Owner 吴桂初