PCB Tech - About the new color dimming LED PCB circuit board

A new type of color light LED circuit board, including a substrate. The surface of the substrate is provided with a flexible FPC light bar. The flexible FPC light bar includes a connection for an external power supply.

Very white positive terminal, used to connect the white negative terminal of the negative pole of the external power supply, used to connect the serial module line of the positive and negative terminals, white light source and warm light source. The invention adopts a substrate, a flexible FPC light bar, a white light positive terminal, a white light negative terminal, a series module line, a white light source and a warm light source, and positive and negative alternating currents are input from the positive and negative electrodes. The power driver is connected to the positive and negative poles on the circuit board respectively. It can realize two-wire color change, dimming, and white light on the circuit board. The A lamp B can be adjusted and balanced, and the light can be controlled in sections, which solves the problem of three-wire input of the existing power driver. The installation process is simple and the manufacturing cost is saved.

LED is an electrical appliance used to transmit, distribute and change the light distribution of a light source, including all components needed to fix and protect the light source (except the light source) and wiring accessories required to connect to the power source.

Especially in recent years, these lights have been decorated in various places or decorated with a festive atmosphere. With the large-scale use of LEDs, LED lamps are favored by the public for their energy saving, long service life and beautiful decoration. This is an important part of the lamp. The circuit board makes the circuit miniaturized and intuitive, which plays an important role in the mass production of fixed circuits and the optimization of the electrical layout.

In order to achieve the purpose of discoloring and dimming in two rows of ordinary lamp PCB circuit boards, the power driver needs three rows of input, so the lamp cannot be controlled in sections. The installation process is complicated and the manufacturing cost is high.

In order to achieve the above objective, the present invention provides the following technical solutions: a new type of color light LED circuit board, including a substrate, a flexible FPC light bar is arranged on the surface of the substrate, and the flexible FPC light bar includes the connection of an external power source. The white positive terminal of the positive pole, the white negative terminal used to connect the negative pole of the external power supply, the serial module line used to connect the positive and negative terminals, the white light source and the warm light source, the white positive terminal, the white negative terminal, the serial module line, the white light source The warm light source is connected to the application module of the line LED, where the white light source is a single or segmented strip arranged in the application module to form at least one row of monochromatic lamp beads to form a soft and uniform wire connection. In a module that is adjustable or does not darken or change color, the warm light source is a string or a combination of multiple colors of light strips arranged in at least one row in the application module to form a soft and uniform string connection. Modules that have been adjusted or not darkened or discolored.

The substrate is a metal substrate

The metal substrate is an aluminum substrate

The components welded between the circuit board and the white light source are fixed on the mounting surface of the heat sink by rolling or bonding or by screws.

The shape of the substrate is round

Compared with the prior art, the beneficial effects of the present invention are as follows:

The invention adopts a substrate, a flexible FPC light bar, a white light positive terminal, a white light negative terminal, a series module line, a white light source and a warm light source, and positive and negative alternating currents are input from the positive and negative electrodes. The power driver is connected to the positive and negative poles on the circuit board respectively. It can realize two-wire color change, dimming, and white light on the circuit board. The A lamp B can be adjusted and balanced, and the light can be controlled in sections, which solves the problem of three-wire input of the existing power driver. The installation process is simple and the manufacturing cost is saved.