Compared with traditional optical and magnetic coupler, it has higher voltage resistance, faster transmission speed, wider temperature range and longer working life. NOVOSENSE isolation chip is based on the volume isolation technology route. Long development in isolation chip technology with four characteristic isolation productsĪn inverter needs about 25 isolation chips on average, which are mainly used in the low-voltage and high-voltage parts of PV inverters to meet the requirements of system safety and safety regulations. Isolation ICs include driver, sampling, digital isolator and isolation interface Other analog ICs include operational amplifier, power supplies (flyback /DC-DC/LDO), buffers, etc.ġ. NOVOSENSE solutions for PV inverters mainly include isolation ICs and other analog ICs. In the PV inverter, a large number of analog chips will be used in the driver circuit of power semiconductor, the sampling circuit of bus voltage/current/temperature detection, the over-current protection circuit, the communication circuit inside and outside the system, as well as the power supply and MCU power monitoring circuit. ![]() With the development of PV core devices towards high efficiency, low energy consumption and low cost, analog technology and chips are playing an increasingly important role in optimizing and improving the intelligent level of PV power generation technology. However, with the continuous development of PV technology, micro inverters can now achieve 3000 or even 5000 watts of power with the reduction of IC cost, micro inverters can replace low-power series inverters, and eliminate the potential safety hazards of high-voltage series inverters. Centralized inverter is a large-scale and super-power PV inverter, mainly used in large industrial and commercial power generation systems Series inverter is the most commonly used inverter for domestic and commercial solar energy systems, featuring low cost, flexible design and high efficiency. For example, soilless planting plants, agricultural science and technology greenhouses, abandoned mining areas, and water treatment municipal facilities are used to realize comprehensive applications, effectively reducing carbon emissions in the realization of industrialization and land efficient output.Īt present, PV system is mainly divided into centralized inverter, series inverter and micro inverter. ![]() In order to continuously improve the comprehensive income of power stations, PV power stations tend to be integrated with the primary industry. With the large-scale expansion of PV power stations, land resources for the construction of high-quality power stations are scarce. PV, as an important renewable energy generation technology, is developing rapidly, becoming a clean, low-carbon and price competitive form of energy. Therefore they are ideal for applications which may experience variations in voltage.In recent years, renewable energy has become the leading direction and concerted action of the global energy revolution and the response to climate change. ![]() This ensures that, if there is a spike in one part of a circuit, it will not affect other parts. The light detector senses the light emitter and converts it back into an electrical signal.Optocouplers are often used in high-voltage applications to block the high voltages and variations in voltage. The light emitter receives the input and converts it into a light signal. Optocouplers usually come in a semiconductor package, such as SOIC or PDIP.How does an optocoupler IC work?Optocouplers work by transferring energy from one circuit to another circuit via an optical transmission path, while providing electrical isolationThe light emitter device can come in the form of an LED (light emitting diode) that produces IR or visible light, or a laser diode. Within an optocoupler you will find a light emitter and a light sensor. Optocouplers An optocoupler IC, also known as an opto-isolator or photocoupler, is a semiconductor device which is used to couple isolated circuits.
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