The utility model relates to a constant current source device which can carry out coarse adjustment and fine tuning. It includes a voltage regulator and current transformer, including trimming transformer; voltage regulator voltage regulator comprises a coarse and fine tune tune regulator, coarse tune regulator and tuning regulator are connected in parallel with the primary input power; tuning regulator secondary is connected with the transformer primary coarse tune fine-tuning. Transformer secondary and fine-tuning regulator in accordance with the same name end after the secondary series connected to the output current transformer primary. Because the utility model in a constant current source circuit used in the fine and coarse tune regulator and increase the fine-tuning of transformer, which makes the detection of wide current range, high detection precision, and can be manual or automatic. And has the advantages of simple structure, low cost, easy operation, especially for the transformation of the current transformer and the voltage regulator is composed by the presence of fine-tuning the poor accuracy of the constant current source, a circuit transformation is simple, can maximize the use of existing equipment, low cost, short cycle of transformation and other significant advantages.
【技术实现步骤摘要】
可进行粗调和镦调的恒流濂装置所属技术領域本技术扁于恒流源装置,特别是涉及一种可进行粗调和徵调的恒流源装置,背JR技术目前公知的为了解决存在的恒定电流给定输出时的技术问鼉而采用的恒流源装置,多 是在输出升淹变压器的初级堆接一个调压器来实现*这样对于电流精度要求较离的场合就会有无法进行电嫌襯调的缺陷即使采用调节糖度较高的电动调压器进行自动糖流,由于 调压器的线園本身有其固定的最小压降,一般也很难使电流的糖度在微调时有貭的改蕃, 如果这时釆用稳流精度较离的数字式恒流源,则不仅使电路的设计变的复杂同时也大大增 加了^和开发周期.
技术实现思路
本技术为解决公知技术中存在的技术问通而提供一种结构简单、易操作,并可在宽电流范围内粗壤的同时,进行精确微调的可进行粗调和微调的恒流源装置.本技术为解决公知技术中存在的技术问通所采取的技术方案是:它包括有调压器和升流变压器,遂包括有撇调变压器所述的调压器包括有粗调调压器和徵调调压器,所 述的粗调调压器和襯调调压器的初级并联在一起接电源输入塌所述的微调调压器的次级 接微调变压器的拥级,所述的粗调调压審的次级与所述的微调变压器的次级按 ...
【技术保护点】
一种可进行粗调和微调的恒流源装置,它包括有调压器和升流变压器,其特征在于:还包括有微调变压器;所述的调压器包括有粗调调压器和微调调压器,所述的粗调调压器和微调调压器的初级并联在一起接电源输入端;所述的微调调压器的次级接微调变压器的初级,所述的粗调调压器的次级与所述的微调变压器的次级按照同名端相同串连后接在输出升流变压器的初级。
【技术特征摘要】
【专利技术属性】
技术研发人员:王铁镰,徐卫生,张远矩,
申请(专利权)人:天津市百利电气有限公司,
类型:实用新型
国别省市:12[中国|天津]
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