Constant-source current can guarantee constant output current.
仪器采用恒流源电路，保证输出电流的恒定。
Use supper bright high power LED and high voltage of constant circuit which supply constant output current.
采用高亮度大功率LED，高精度恒流电路，提供稳定的输出电流。
Thus it not only solved the problem of constant output current while load impedance is varied, but also solved the matching problem of output impedance and load impedance.
因此，它不仅解决了负载阻抗变化时输出电流的恒定问题，还解决了输出阻抗与负载阻抗的匹配问题。
LED drivers are necessary in the application of LED lighting. They can supply constant output current and make the LED light even, and also can make the LED's life longer.
LED照明的应用离不开它所需要的驱动控制电路，通过驱动电路来获得良好而平稳的电流，使LED照明更加稳定，满足各种场合的应用要求，同时可以延长LED的使用寿命。
The relationship between the control voltage and the current output by the constant-current source may shift.
控制电压和由恒流电源输出的电流之间的关系改变可能会产生漂移。
A fairly basic circuit (left as an exercise, but it's not difficult) can take the control voltage and output a constant current which is proportional to the voltage.
一个相当基础的电路(留作练习，不过并不难)处理控制电压并输出与电压成比例的恒流。
MPS700 series dc voltage constant-current power supply, is designed by using linear series MOSFET control mode of the ac input dc output power.
MPS700系列直流稳压稳流电源，是采用MOSFE T线性串联调整方式设计的交流输入直流输出电源。
The 749399 USES a constant off-time control scheme to provide high efficiencies over a wide range of output current.
在749399采用恒定关断时间控制计划，提供了一个广泛的输出电流的高效率。
This numerical control constant current source with the core of single chip microcomputer can provide exact control for the output current, the control could attain milliampere level.
这种以单片机为核心的数控恒流源实现了对输出电流的精确控制，控制精度可达毫安级。
Typical analysis of the constant-current resistance and the output current error, The writer gives the analysing process by means of operational amplifier.
从恒流源内阻和形成输出电流误差两个方面，给出用运算放大器构成压控恒流源的分析结果。
The PCB, used constant current technique, provides stable output current to reduce the debility and guarantee its service life.
灯板使用恒流技术，提供稳定的输出电流，减小衰弱，保证LED的使用寿命。
Current driver of high power LD with inner constant voltage source adjusts the output current of the driver by controlling the voltage of the sampling resistance.
大功率半导体激光器驱动电源内置恒压源，通过控制采样电阻两端电压调节恒流源电流大小。
Constant current source can avoid the fluctuations of output current due to the fluctuations of input voltage, and maintain the brightness of LED.
恒定电流源可以避免因输入电压的波动使LED的驱动电流波动并维持LED的亮度不变。
The numerical control constant current source USES microcontroller's control and modularity's design to improve its output accuracy and stability.
该数控恒流源基于单片机控制，采用模块化设计，进步了恒流源白勺输出精度和稳定度。
The utility model has the advantages of wide current-adjusting range, constant output voltage, easy firing and conservation of energy.
优点是调流范围宽，输出电压恒定，起火容易，节能。
The control system of street light unit USES the constant current to supply, has the function of establish and timing adjustment output.
路灯单元控制系统采用恒流源供电，具有输出功率调整功能，并能定时调整功率。
The control system of street light unit USES the constant current to supply, has the function of establish and timing adjustment output.
路灯单元控制系统采用恒流源供电，具有输出功率调整功能，并能定时调整功率。
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