Quick-response constant current source parallel system and implementation method thereof

A fast-response, constant-current source technology, applied in the field of constant-current sources, can solve the problems of high cost, difficult system stability, and high requirements, and achieve the effects of cost saving, simple implementation, and constant output current.
CN101853038AActive Publication Date: 2010-10-06ZTE CORP
4 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
ZTE CORP
Publication Date
2010-10-06

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a quick-response constant current source parallel system and an implementation method thereof. The system comprises a constant current source parallel unit, a system output current detection unit, an MCU data processing unit and a digital potentiometer, wherein the constant current source parallel unit consists of a plurality of constant current source modules which are connected in parallel; each module outputs a corresponding current according to a given current signal; the system output current detection unit detects the output current of the constant current source parallel unit in real time to output a detected current signal; the MCU data processing unit receives and detects the current signal detected by the system output current detection unit and a given system current signal to output a voltage division ratio signal; and the digital potentiometer receives the voltage division ratio signal transmitted by the MCU data processing unit to determine and output the given current signal of each constant current source module. Quick adjustment for variation in output current can be realized by a simple implementation method without complex control software when single or more modules are failed; and the cost can be saved and constant output current of the system can be ensured.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention relates to a constant current source technology, in particular to a low-cost, fast response constant current source parallel system and an implementation method thereof. Background technique

[0002] The constant current source is a power supply device that provides a constant current to the load. Its characteristic is to keep the output current constant when the external power grid fluctuates and the load impedance changes. With the development of power electronics and semiconductor devices, the demand for the output power of constant current sources is also increasing. In many cases, the output voltage is up to several hundred volts and the output current is up to several hundred amperes or even thousands of amperes. The development of capacity, high voltage, high power and high reliability is the inevitable trend of constant current source.

[0003] Due to device limitations, the output power of a single constant current source can generally...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More