A voltage output circuit with continuously controllable output voltage
CN224697672UActive Publication Date: 2026-08-28WUXI TACLINK OPTOELECTRONICS TECH CO LTD
View PDF 0 Cites 0 Cited by
Patent Information
- Application Number
- CN202521393456.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-07-03
AI Technical Summary
Technical Problem
对于此类需求，在现有的常用设计方案中，一般是利用DAC芯片、模块或DAC电路将数字信号转为连续可控的模拟电压信号，但是，这种方式存仍在一定的局限性，一是常用DAC芯片/模块的输出信号电压值普遍较低(＜100V)，无法满足那些有大电压(本专利所述大电压均指电压值大于100V，后文不再做特殊说明)需求的设计，二是现有的能够输出大电压信号的DAC和运算放大器的采购成本较高，很难满足成本控制需求，这就导致了此类方案普遍应用于低电压电路设计
Benefits of technology
[0027]本实用新型提供的输出电压连续可控的电压输出电路设置了能够对输出电压进行控制的运算反馈回路，使输出电压可调并连续可控，同时在常用电源方案的基础上加入了倍压电路，在满足器件驱动信号需求的前提下又能够有效节约成本。
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224697672U_ABST
Abstract
The utility model discloses a kind of output voltage continuous controllable voltage output circuit, it is related to power electronics field, including the voltage boost module and the operation feedback module of being connected, the operation feedback module includes the voltage divider circuit of adaptive connection, voltage follower and operation circuit;The voltage divider circuit is used to collect the output voltage VO of voltage boost module and generates primary feedback voltage VFB1, the voltage follower is used to regulate primary feedback voltage VFB1 and generate secondary feedback voltage VFB2;The operation circuit is used to generate feedback voltage VFB3 according to control voltage VC and secondary feedback voltage VFB2, feedback voltage VFB3 is output to voltage boost module, for controlling voltage boost module generates required output voltage VO.This circuit can make output voltage adjustable and continuously controllable, and under the premise of meeting large voltage signal demand, it can effectively save cost.
Need to check novelty before this filing date? Find Prior Art