恒流控制电路,包括全桥整流电路,变压器,续流二极管和功率开关管,所述全桥整流电路的直流正向输出端连接变压器的原边正向端,所述变压器的原边反向端连接功率开关管的漏极,所述全桥整流电路的交流正向输入端连接高压供电支路的高压电源端;所述高压供电支路包括串联的高压NMOS管和中压NMOS管,所述高压NMOS管和中压NMOS...
本发明提供的恒流控制电路在具备恒流控制的基础上具有精度高,电路结构简单且成本低的优势. Constant current control circuit of the present invention provides a high precision, simple circuit structure and low cost advantages with constant current control basis.付凌云王乐康李照华林道明赵春波谢靖...
The invention provides an auxiliary-winding-free primary side controlled LED (light-emitting diode) driving circuit and PFC (power factor correction) constant-current control circuit thereof. The LED driving circuit comprises the PFC constant-current control circuit, a first capacitor, a first resistor...
Constant Current Circuit for Flexible Filament LEDs Using Cytron Maker Nano RP2040 With PWM Brightness Control: This article shows how to power flexible "filament" LEDs and vary their brightness using a microcontroller. A simple transistor-based circuit
The present invention relates to a busbar current control circuit, a constant current drive controller and an LED light source, wherein the busbar current control circuit comprises
The present invention is a switch mode current control circuit which is particulary useful with step motors. The circuit has a first transistor, a coil and a first resistor connected in a series with a first voltage source. An optocoupler having a light emitting diode and a second transistor ...
The utility model provides a primary control LED drive circuit without auxiliary winding and a PFC constant current control circuit thereof. The LED drive circuit comprises the PFC constant current control circuit, a first capacitor, a first resistor, a voltage-divider network, a transformer, a ...
A constant current circuit includes a first FET providing an input reference current flow, a second FET providing an output current flow and a non-linear impedance element connected between the drain
CONSTANT-CURRENT CIRCUIT 专利名称：CONSTANT-CURRENT CIRCUIT 发明人：OKAMOTO YOICHI,岡本 陽一,KIMURA HIROSHI,木村 博 申请号：JP特願2000-146542(P2000-146542)申请日：20000518 公开号：JP特開2001-325033(P2001-325033A)A 公开日：20011122 专利内容由知识产权出版社提供 专利附图：摘要：PROBLEM TO BE SOLVED...
The present invention is a switch mode current control circuit which is particulary useful with step motors. The circuit has a first transistor, a coil and a first resistor connected in a series with a first voltage source. An optocoupler having a light emitting diode and a second transistor ...