It is important to ensure that the device can handle the internal ripple of the converter and the ripple caused by unstable power supply. a: N6705A is set to generate 500mVpp ripple on a 9V output. 3b: N6705C output on the oscilloscope. Guangzhou professional linear thyristor dimming wholesale efficiency testing. Generally speaking, the most important test for constant current chip to constant current chip converters is efficiency testing. This is particularly true for battery powered devices, as efficiency directly affects the battery's lifespan. The efficiency of a converter is the ratio of output power to input power. To test efficiency, a constant current chip power supply should be used to provide power to the converter and an electronic load should be used to obtain power from the converter. The efficiency of constant current chip to constant current chip converter design is usually affected by the input voltage and the power consumption of the load.
It is very difficult to accurately measure the data signal. Seamless splicing for precise measurement of current measurement is difficult for traditional components to accurately measure data signals within such a wide sampling rate. Therefore, design personnel generally choose switch mode power supplies/precision measurement modules (SMUs). As we all know, SMU has a very high level of precision in outputting and accurately measuring current. However, traditional SMUs are not suitable for the output and measurement of battery power devices and their components. The transient response capability of voltage is usually insufficient to maintain stable output. Even if very accurate measurement values can be provided within a fixed range, it is not possible to quickly change the range without interrupting the measurement.

The overcurrent protection function can effectively convert the current limiting setting into a trip value. To protect the tested device from excessive current damage and prevent false tripping caused by normal changes in output current, please set the current limit value appropriately. This kind of change usually occurs during the period of output voltage change, during which the output transitions. Unlike the overvoltage protection function, the overcurrent protection function defaults to off. The overcurrent warning in the bottom left corner indicates that overcurrent protection has been triggered. What is periodic and random deviation (PARD)? PARD (commonly referred to as fluctuation and noise) refers to the deviation of the periodicity and randomness of the output voltage and average output voltage of a constant current chip within a given bandwidth when all other parameters remain constant.
Linear power supplies have low common mode noise current and typically operate at low frequencies. However, if the technical specifications of switch mode power supplies include low common mode currents, you can successfully use them. Based on experience, super 2-3-0m may cause common mode current failure. Based on the experience of a total mode current of 20-30a, a fault may occur. The connection between the tested device and the power supply reduces conducted noise by reducing the grounding circuit. In an ideal state, there should be only one grounding connection. However, in a framework system, it is inevitable that multiple grounding positions will occur, and it is necessary to isolate the constant current chip distribution circuit and other transmission paths that bear the grounding current.