Multiway input feedback type electronic load system

Abstract

The invention discloses a multiway input feedback type electronic load system comprising power input ends with a number of N, a summarizing boosted circuit and a total inverter unit, wherein the N is larger than or equal to 2. Each power input end respectively receives a one-way direct-current power signal in a one-one correspondence mode, and transmits the accessed one-way direct-current power signal to a direct current input end of the summarizing boosted circuit. The summarizing boosted circuit works in a constant voltage mode, and the direct-current power signal input by the direct current input end is summarized and then processed in a pressure boost mode. The total inverter unit is connected with a direct-current output end of the summarizing boosted circuit. The total inverter unit is used for converting the direct-current power signal which is processed in a pressure mode by the summarizing boosted circuit to be an alternating current power supply signal. The multiway input feedback type electronic load system is suitable for aging tests of a constant current power source and a constant voltage power source. According to the multiway input feedback type electronic load system, circuit structure is simple, electronic components are greatly reduced, system reliability is high and applicability is wide.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a multi-channel input feedback electronic load system. Background technique [0002] There are two main types of off power supplies in terms of output characteristics: constant current power supplies and constant voltage power supplies. [0003] A constant current power supply is a power supply whose output current is constant during normal operation, and its power supply current does not change with the change of the output voltage. For example, if a constant current power supply with a parameter specification of 1A / (0~50V) is connected to any load working in constant voltage mode between 0~50V at the output terminal, the power supply current value will remain at 1A. Correspondingly, a constant voltage power supply is also called a regulated power supply, which requires a fixed output voltage value and does not change with external working conditions such as load and input ...

AI Technical Summary

Problems solved by technology

[0008] The multi-input feedback electronic load system in the prior art mainly has the following disadvantages: on the one hand, because each branch of the power input under test requires a booster circuit unit, the entire electronic load system has many components and complex circuits. The reliability of the system is low and the construction cost is high; on the other hand, the current and power of each branch input power supply under test will be affected by the switching tube, diode, inductor and other power components of the branch booster circuit unit itself. limit

Since the tolerance range of the power element to the input current and power is smaller than that of the resistance, it is easier to be damaged, thus limiting the scope of application of the power supply under test on the input side of the regenerative electronic load system

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