1. Function of voice-activated switch
1. No matter which rectifier circuit, its output voltage has a large ripple component. In addition to being used as the power supply for amplifiers in some special cases, it is usually necessary to take some measures to minimize the pulsation of the output voltage and make the DC component as close as possible to the output voltage, so that it can be used for the ideal DC voltage. Such measures are called filtering.
2. For the four diodes, from right to top and from top to bottom, we divide them into VD1, VD2, VD3 and VD4. When the signal is in the positive half cycle, diodes 1 and 4 are turned on and diodes 2 and 3 are turned off. When the signal becomes negative half cycle, 2 and 3 are turned on, and 1 and 4 are turned off. The positive and negative half-cycle currents flow through the latter load resistor, and the current direction flowing through the latter load resistor is consistent in both positive and negative half-cycles, so the DC component of the output voltage is improved and the pulse component is improved.
3. zener diode voltage stabilization principle. the characteristic of zener diode is that the voltage at both ends remains basically unchanged after breakdown. Therefore, when the voltage regulator is connected to the circuit, if the voltage at each point in the circuit fluctuates due to the fluctuation of the power supply voltage or other reasons, the voltage across the load will usually remain unchanged.
2. What are the manufacturers of voice-activated switches
1. Zhongshan Mengtai Electronic Firm is located in Zhongshan City, Guangdong Province. The company is an integrated electronic enterprise, integrating design, development and production. Main LED corridor lights, LED ceiling lights, acousto-optic control switches, driving power supply, etc., the company has a sound quality management system.
2. Wenzhou Longwan Shacheng Kaimei Electric Appliance Factory is a company specializing in producing engineering switches, 86 household boutique switches, 118 boutique switches, 86 boutique splash boxes, miniature circuit breakers, knife switches and LED lighting. Our company specializes in producing switch sockets for more than 2 years, and has a series of complete production equipment. The company now has hundreds of production and installation workers, with a workshop area of more than 2, square meters and annual sales of 1 million yuan.
3. What are the characteristics of the voice-activated switch
1. Voice-activated, as long as a certain sound is made by hand or other means near the switch, the voice switch will turn on the light immediately, which will be very convenient.
2. The delay switch controls the switch to turn on, and it will automatically turn off after a delay of tens of seconds, which can reduce unnecessary power waste and is practical and convenient.
3. delay the electrical service life, and the voice-activated switch can use electronic components to control the circuit, without contacts, which can eliminate surge current and sparks.
4. Energy saving and environmental protection. Voice-activated switch is an automatic lighting switch, which is composed of acoustics, optics and time delay technology. It is widely used in corridors, buildings and courtyards. It is a modern and ideal new green lighting switch, which can prolong the service life of lamps. Can save energy.
I believe everyone has already understood the suggestions above in Xiaobian. Now voice-activated switches are very common. I hope Xiaobian's suggestions on voice-activated switches will be helpful for everyone to buy.