一种可调内阻的数字化程控电源电路及方法
By calculating the impact of battery internal resistance on output voltage within the control unit, the reliance on a real-time variable multiplication DAC is eliminated, enabling flexible adjustment and accurate simulation of internal resistance, making it suitable for testing different battery types.
CN115276655BActive Publication Date: 2026-07-17CHONGQING HUILING ELECTRONIC NEW TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING HUILING ELECTRONIC NEW TECH CO LTD
- Filing Date
- 2022-08-29
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing programmable power supplies cannot accurately simulate the internal resistance of batteries, and their reliance on real-time variable multiplication DACs limits the range of internal resistance adjustment.
Method used
Two ADCs are used to collect the output voltage and current in real time. The effect of the battery internal resistance on the output voltage is calculated inside the control unit. The output of the power amplifier is adjusted in real time by controlling the DAC, thus eliminating the dependence on the real-time variable multiplication DAC.
Benefits of technology
It achieves flexible adjustment and precise simulation of internal resistance, making it more adaptable and suitable for simulating different battery types, thus improving test accuracy.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115276655B_ABST
Abstract
本发明公开了一种可调内阻的数字化程控电源电路及方法，包括控制单元，控制单元的DAC控制码输出端组连接电压数模转换器，电压数模转换器的模拟输出端连接功率放大器的输入端，功率放大器的输出端连接电流采样电阻的一端，电流采样电阻的另一端作为数字化程控电源电路的输出端，电流检测放大器的两个输入端连接电流采样电阻的两端，电流检测放大器经电流模数转换器连接控制单元，电流采样电阻的另一端连接电压检测放大器的输入端，电压检测放大器经电压模数转换器连接控制单元。本发明采用两个ADC实时采集输出电压和电流，在内部实现电池内阻影响输出电压的计算过程，并通过控制DAC实时调整功率放大器的输出，实现可调内阻功能。
Need to check novelty before this filing date? Find Prior Art