Ningbo Baocheng Electronics CO.,LTD

Power Relay  is a device that can make a transition in one or more electrical output circuits when the input (or excitation) meets certain specified conditions. What are the main characteristics of power relays? The following small series explains for you: 1. Rated working voltage or rated working current: This refers to the voltage or current required by the coil when the high-power relay is working. The construction of one type of high power relay is generally the same. In order to adapt to different voltage circuit applications, one type of high-power relay usually has a variety of rated operating voltages or rated operating currents, and is distinguished by specifications. 2. DC resistance: This refers to the DC resistance of the coil. In some product specifications, the rated operating voltage and DC resistance are given. In this case, the rated operating current can be obtained according to Ohm's law. If the rated operating current and DC resistance are known, the rated

With the development of technology and electronic information technology, relays as basic components are widely used in the field of automation control such as home appliances, communications, automobiles, instrumentation, machinery and equipment, and aerospace. However, we also found that the relay will also have some problems, for example, it will not be disconnected, then why is the relay not disconnected? Let's take a look at the following: 1. The line voltage transient causes the SSR output part to pass through. In this case, use a higher rated SSR or provide an additional transient protection circuit. 2. The line voltage used is higher than the rated voltage of the SSR. 3. The load current is greater than the rated switching current of the SSR. This will permanently short the relay. In this case, the SSR with a larger rated current should be used. 4. At the ambient temperature where the relay is located, if the heat is not good, the output semiconductor device may be

A  Power Relay  is a device that can make a transition in one or more electrical output circuits when the input meets certain specified conditions. So what factors should be considered when choosing a power relay? 1. The voltage and current in the circuit being controlled; 2. When the power relay is selected, the power supply voltage of the general control circuit can be used as the basis for selection. The control circuit should be able to provide sufficient operating current to the power relay, otherwise the relay pull-in is unstable; 3. The controlled circuit needs several sets and what forms of contacts; 4. Control the circuit's supply voltage, the maximum current that can be supplied. BAOCHENG is a China supplier of power relays,  Telecom Relays ,  Automotive Relay . We build local service network in many countries and regions, and have global market operation and technical service ability.

Control speed: The relay control logic is controlled by the mechanical action of the contact, the working frequency is low, the millisecond level, and the mechanical contact has jitter. PLC is controlled by program instructions to control the semiconductor circuit, fast, microsecond level, strict synchronization, no jitter. Delay control: The relay control system realizes the delay control by the hysteresis action of the time relay, while the timing relay precision is not high, which is greatly affected by the environment and the adjustment time is difficult. The PLC uses a semiconductor integrated circuit as a timer, and the clock pulse is generated by a crystal oscillator with high precision, convenient adjustment time, and no environmental influence. In general, the relay control system is designed for a certain production machinery and fixed production process. It is assembled by hard wiring and can only perform the functions of logic control, timing and counting. Once the pro

The  Automotive Relay   actually functions as a switch. When the ignition switch is turned on, if the working component subjected to a large load is overloaded, it becomes an open state and plays an important role in protecting the circuit. For appliances that use a relatively large amount of electricity (such as starters, electric horns, etc.), if the switch is used to directly control the on and off of the current, the control switch will quickly burn out. Therefore, for the control of high-current electrical equipment, the intermediate relay is generally adopted, that is, the working state of the high-current electrical equipment is controlled by the opening and closing of the relay contacts. Some models use many miniaturized relays with internal resistance, which can save assembly space and reduce or eliminate the 300~500V peak voltage that may appear in the circuit, thus protecting the components in the electronic control system and preventing the function. Mistakes. The use of a

Power Relay  is a device that can make a transition in one or more electrical output circuits when the input meets certain specified conditions. 1. It has ideal insulation performance. Under ideal conditions, it may reach a dielectric constant of 80,000V/mm. Since there is no oxygen, it will not oxidize during use. In this way, the relay has small and stable contact during use. resistance. 2. High electric resistance, large rated load current and conversion current, small contact resistance, stable operation, low noise, small distributed capacitance and inductance between poles, small contact opening distance, low excitation power, fast breaking speed The contact is sealed and is not affected by the pressure, moisture, dust or explosive gas of the surrounding environment, and is suitable for working in a harsh environment. 3. It has good arc extinguishing performance. The arc is easy to spread and is not easy to cause contact wear, so the relay has a long life and can carry a lo

Relay is an electrical control device that is an electrical device that causes a predetermined step change in the controlled output quantity in the electrical output circuit when the input quantity changes to meet the specified requirements. What are the reasons for the relay not to be disconnected? Let's take a look at the following: 1. The load current is greater than the rated switching current of the SSR, which will permanently short the relay. In this case, use a SSR with a large rated current. 2. At the ambient temperature where the relay is located, if the heat is not good, the output semiconductor device may be damaged. In this case, a larger or more effective heat sink should be used. 3. Line voltage transients cause the SSR output section to be punched through. In this case, use a higher rated SSR or provide additional transient protection circuitry. 4. The line voltage used is higher than the rated voltage of the SSR. We specialize in producing relays for many

Automotive Relays  most cars can find traces of relays simply by turning off the hood and finding the relay mounting box. Automotive lighting, wipers, starters, and audio systems are all equipped with control relays. It is one of the most used electronic components in automobiles. The current global market demand exceeds one billion. The Automotive control relays are technically demanding because they are required to withstand vibration, high temperatures, low temperatures, humidity, and aggressive environments such as oil, salt, and water. They require long life, high reliability, small size, low consumption, and electromagnetic compatibility. Flame retardant, fast response and other properties. The The former car control relays are still mainly mechanical, but the development of solid state relays. In the event of a relay failure, it will immediately cause paralysis in the function of the system components and may even cause the entire vehicle to move. For example, if the starte