Method and device for improving dynamic tracking performance of dcdc constant current power supply
A constant current power supply and dynamic tracking technology, which is applied in the direction of output power conversion devices, electrical components, and adjustment of electrical variables, to achieve accurate adjustment, save generation time, and improve dynamic tracking performance
Active Publication Date: 2021-04-02
HAWUN ELECTRONICS CO LTD
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Problems solved by technology
Therefore, the improvement of the dynamic tracking performance of the laser power supply affected by this parameter has certain limitations
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[0032] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0033] Such as figure 1 As shown, in a method and device embodiment for improving the dynamic tracking performance of a DCDC constant current power supply of the present invention, the method for improving the dynamic tracking performance of a DCDC constant current power supply includes the following steps:
[0034] Step S11 monitors the rising edge and falling edge of the reference signal: In this embodiment, generally speaking, the reference signal in the DCDC constant current power supply (for example, laser power supply or medical laser power supply) is a continuous square wave signal, which has rising and falling edges. In this step, the reference signal of the above-mentioned constant current power supply is monitored to find the arrival time of its rising edge and falling edge. When the falling edge arrives after the rising edge, the subsequent ...
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The invention relates to a method for improving the dynamic tracking performance of a DCDC constant current power supply, comprising the following steps: monitoring the reference signal of the constant current power supply, and when the rising or falling edge of the reference signal is detected, The signal amplitude obtained after analog-to-digital conversion and sampling of the reference signal is calculated to obtain the value of the integral term, and the value of the integral term is used to adjust the output of the integral adjustment branch of the PID compensator to control the constant current power supply. Output current. The invention also relates to a device for implementing the above method. Implementing the method and device for improving the dynamic tracking performance of the DCDC constant current power supply of the present invention has the following beneficial effects: the time to obtain the integral parameter is faster and the dynamic tracking performance is better.
Description
technical field [0001] The invention relates to the field of power supply control, and more specifically relates to a method and a device for improving the dynamic tracking performance of a DCDC constant current power supply. Background technique [0002] Power supplies used in some specific occasions usually have high requirements for their dynamic tracking performance. For example, laser power supply systems are often used in medical laser equipment to supply power to laser loads, and their application scenarios have a high level of dynamic tracking performance for laser power supplies. Very demanding. In the classic application of laser power system, the external reference signal i ref (t) is a high-frequency square wave within a certain amplitude range, and the laser power supply needs to control its output current i o (t), so that the output current dynamically tracks the reference signal. In order to protect the laser load, the system has strict requirements on the ...
Claims
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IPC IPC(8): H02M3/00H02M3/157
CPCH02M3/00H02M3/157H02M3/1566
Inventor 宋栋梁臧晓敏戴丽名梁学文
Owner HAWUN ELECTRONICS CO LTD