Fuhongda Electronics will soon participate in the Hong Kong global sources Electronics Show in October 2017. Booth No.: 11N39 Time: October 11-October 14, 2017 Location: Asia International Expo Welcome New and Old Customers to Booth for Talks! In this year's electronic exhibition, our company will show you our newly developed buzzer, horn, alarm, receiver and other products. Welcome new and old friends to our booth consultation, on-site selection of products. In the next 2017, we will, as always, strive to provide you with good quality buzzers, speakers and speakers and other products, at the same time, as a buzzer,

Our company is a professional engaged in electro-acoustic electrical product development design, manufacturing and sales in one of the enterprises. Products are widely used in home appliances, digital, communications and other industries. Product demand, broad prospects, the main customers in Europe and the United States, South Korea, Japan, Hong Kong, Taiwan and other regions. At present, due to the development of the company, we need to recruit the following personnel: 1. the responsibilities of foreign trade assistant: 1. Be familiar with the company's products, carry out foreign trade business on B2B platforms such as Alibaba, global sources and made-inchina, expand domestic and overseas markets, and develop and maintain new and old customers; 2, in Alibaba, global sources and other electronic merchants

The "Reserve Cadre Training Project" recruitment brochure reserve cadre training program is a plan for the introduction and training of outstanding talents for fresh college and undergraduate graduates in ordinary colleges and universities. Through the company's internal system training and promotion, for the grass-roots, quality management and repair team to provide a strong reserve force. 1. majors choose electronics, mechatronics, machinery, materials, management 2. personnel requirements 1. College degree or above, and can normally obtain graduation certificate and degree certificate 2. Hard-working, willing to study, self-motivated and responsible 3. It is better to be able to use AutoCAD 4. Good interpersonal communication skills and should be

If the user does not have test equipment, he can test whether the electromagnetic passive buzzer is suitable for use through the following simple methods: 1. Take a finished PCB actually used by the user, or a PCB with a complete circuit of the buzzer sound source output part. 2. Confirm whether the circuit parameters on the PCB are correct: First, whether the power amplifier part of the circuit is correct, refer to Figure 1, where the diode IN4148 can be absent; Second, confirm whether the frequency of the signal generated on the PCB matches the selected buzzer (the signal frequency is preferably 50% duty cycle square wave, otherwise some parameters of the buzzer will be affected), and the selected buzzer amount

The following about the correct use of electromagnetic passive buzzer, for the user in the design reference. The principle of the electromagnetic passive buzzer is an electro-acoustic device that converts electrical energy into the vibration of the vibrating plate by the electromagnetic effect to make a sound. When an electrical signal of a certain frequency passes through the coil inside the buzzer, an alternating magnetic field is generated. After the magnetic field is strengthened by the iron core bracket in the middle of the coil, the vibrating plate on the magnetic ring is pushed to vibrate. The internal structure and anatomy are shown in Figure 1; for detailed principles, please refer to electroacoustic knowledge >>> The working principle of electromagnetic passive buzzer The working parameters of general electromagnetic passive buzzer mainly include: coil resistance, rated voltage, S

Automotive electronic buzzer direct manufacturers, complete style, buzzer is an integrated structure of electronic buzzer, widely used in computers, printers, copiers, alarms, electronic toys, automotive electronic equipment, telephones, timers and other electronic products for sound devices; buzzer is mainly divided into piezoelectric buzzer and electromagnetic buzzer two types. The piezoelectric buzzer is mainly composed of multi-vibrator, piezoelectric buzzer, impedance matching box, resonance box and shell. The multivibrator is composed of transistors or integrated circuits. When the power supply is turned on (1.5~15V DC working voltage), the multivibrator vibrates and outputs 1.