Which one do you recommend to brighten the point light source?
Manufacturer 1: Shenzhen Point Light Technology Co., Ltd. main products: LED pixels; LED point light source business introduction: Shenzhen Point Light Technology Co., Ltd. is a passionate and innovative professional LED point light products company.
If you ask me which of these is better, it must be Shenghong Optoelectronics, there is no doubt about this. Packing is very careful, it is recommended to ask customer service, so it is easier to make a decision.
Yulong Lighting Electrical Appliance Factory is an urban night scene lighting project, outdoor floodlighting of buildings, road lighting, park, square, bridge lighting, all kinds of art landscape lighting, large-scale festival lighting production, commercial space lighting and other series lighting professional company.
Shanxi Xingguanghui Lighting Engineering Co., Ltd. was established in March 2006, the sales store is located in the north-central part of Taiyuan Lishiting 26th row 3. Main building lighting, bridge lighting projects, landscape lighting, all kinds of outdoor lighting wholesale and construction, all kinds of indoor lighting wholesale.
Dimming table lamp circuit diagram.
1. The simplest LED lamp circuit: ac part, 500ohm current limiting resistor, IN4007 rectifier diode, current source with 0.68microcapacitor and 0.2A insurance. The 10-micromethod electrolytic capacitor is used as a filter capacitor to make the output current more stable. LED can be composed of multiple light emitting tubes in series.
2 、 http://image.baidu.com/i? Ct=201326592&cl=2&lm=-1&tn=baiduimage&istype=2&fm=index&pv=&z=0&word=%B5%F7%B9%E2%B5%C6%B5%E7%C2%B7%CD%BC&s=0, open the link and have a look.
3. Here is a dimming table lamp circuit diagram, which supports three-color dimming and uses the very commonly used 5V power supply. The corresponding PCB circuit board is like this: the appearance of the whole table lamp: the LED of this desk lamp is connected in series, one is white light, the other is warm light, which are respectively controlled to turn on and off.
4. General dimming desk lamps use bi-directional thyristor to avoid flickering of lights. Adjust the RC phase shift, control the conduction angle of the thyristor, so that the two ends of the bulb get different voltages, thus dimming.
Dimming desk lamp wire connection method
1. One is connected to the plug wire, and the other is connected to the switch connection post first. the specific method is as follows: one of the two wires of the desk lamp and one of the two wires of the plug are connected to expose the copper wire and wrapped with insulating tape.
2. With reference to the instructions for use, the two wires at one end of the switch are connected to the power plug, and the two wires at the other end are connected to the original plug wire of the desk lamp. The original lamp plug can be cut off (retain a section of wiring) and connected to the dimming switch. The operating instructions may have a manual alone or may be marked on the back of the switch.
3. In one case, the power supply is directly connected to the sliding rheostat, and then the rheostat is connected to the electric lamp. If you think it is correct or adopt it, please give me a good comment. Oh, thank you.
4, turn on the switch control, normally adjust the light control to the sunset time. Normal light control switch will have three connectors, namely, switch control wire, zero wire and fire wire, the general connection method is only connected to fire wire and zero wire.
Dimming switch wiring diagram
General dimming switch circuit diagram. The zero wire (N) is connected to one end of the lamp holder, the hot wire (L) is disconnected, and the input and output terminals of the printed circuit board (PCB) are connected. Look for the corresponding point on the circuit board, and then you can use it after welding.
It should be a double control / dimming switch, plus a double control switch. The connection method is as follows, the dimming part can be strung at the end of the fire line. That is, (the advanced dimming part of the fire line, and then comes out from the dimming part, and you still regard it as the fire line and go to the double control switch on the same panel. Just follow the picture at the back.
Put the zero line directly through the lamp holder, and then place the line on the center point of the switch. Connect the two sides of the light switch with other curves. When going out, one is connected to the center point of 220v and the other is connected to the switch.
Dimming table lamp circuit diagram
1. Here is a dimming table lamp circuit diagram, which supports three-color dimming and uses the very commonly used 5V power supply. The corresponding PCB circuit board is like this: the appearance of the whole table lamp: the LED of this desk lamp is connected in series, one is white light, the other is warm light, which are respectively controlled to turn on and off. When the white light LED is lit alone, it is the white light.
2. This voltage is also added to the G pole of the thyristor to control the channel current of the thyristor. Feedback to the left bulb current to change its brightness to achieve the dimming purpose, the function of C2 is to adjust the PR so that the VT2 emitter voltage changes relatively smoothly.
3. The use of the original circuit elements can not meet the conduction conditions of the newly replaced thyristor, but the conduction angle of the thyristor is insufficient, the amount of electricity passed is not enough, and the electric lamp is not as bright as before. The following diagram is the basic schematic diagram of the dimming table lamp, in which the R value is large and the controllable silicon conduction angle is small, so it is necessary to reduce the R value to increase the conduction angle.
