概况：目前，全球照明市场，使用的技术，包括磁荧光灯管，电子荧光灯管自整流管紧凑型荧光灯（CFL），卤素及高强度放电，HID氙。
电子荧光管技术采用了不同的磁场荧光灯管光源的脂肪，主要的应用领域包括工业厂房，小型办公室照明，住宅及酒店照明，卤素照明，以及零售和户外HID照明。除了白炽灯泡和磁性整流器件，几乎很难看到的头发或光源控制电路某一种可以由其他的技术，每个LED技术的新型替代了相应的应用软件，电子光管照明技术产品的在其能源效率的结果将进一步推广。
HVJI技术
目前，高电压隔离技术在电力电子部分领域（HVJI）的广泛应用，HVJI技术可以确保低电压的隔离槽控制电路和高电压分离因此，在600V的单芯片，以实现高方司机的控制能力，如图腾柱的广泛使用半桥式拓扑结构不同的电源转换器电路拓扑，偏低。
照明控制IC
IR2153正在使用的技术HVJI照明IC，具有标准的555定时器集成电路和低侧驱动电路。 IR2156的扩大，包括预IR2153的功能，加热和错误处理等，从而延长使用寿命，增加了使用的可靠性。 IR2166还增加了有源功率因数校正（PFC）功能，实现全控整流单芯片解决方案。在IR2166，包括两个独立的晶体振荡器，控制输入整流器，以及其他控制管。然而，为了满足T5荧光灯控制的新要求，IR2166具有停产针灯检测的过电压寿命结束，以实现高压报警或在危险的情况下安全状态为确保整顿。
IR2520D的小型和实际
另一个主要市场是节能灯技术的采用。传统的控制电路开始采用振动模式，而且成本较高。由于tr的解决方案的可靠性问题，极大地妨碍了市场的快速增长。
IR2156的是能够满足节能灯控制电路的要求，但附加功能。虽然IR2153不能提供完整的解决方案，但非常容易使用，只有8引脚，从而降低成本。新的节能灯控制芯片的挑战依然存在整流器小型化，并提供必要的职能，而不一定是多余的引脚8。
到目前为止，HVJI技术主要是用来隔离高压栅极驱动电路和控制电路，芯片IR2520D的扩展了检测功能来控制照明。对于检测功能，以前的IC设计需要，如低直流母线独立的引脚，以及过电流关断，如照明。 IR2520D的使用，通过一个引脚HVJI技术和新的控制算法和传感器的信号所需的参数。这脚是高压直流母线的分离和半公共边桥的中点，这意味着，当半桥低边开关对测量信号，然而，当完成半桥高侧开关开路时，低端半桥高电压承受攻击穿。 IR2520D的通过三个内部高压MOSFET来实现这一功能，使用诸如要素零电压保护和浪涌检测新的控制算法，以完成必要的修正功能，剩下的引脚，用于设置{zd1}工作频率和预热时间。与高频振动功能，加上取消千赫以上的频率，以获取{zd1}的频率，以减少外部EMI滤波器的要求。
IR2161：HVJI技术的新应用
现有的自然整流器的解决方案和较高的成本压力，以及卤素使用免费的技术，LED控制的挑战。作为过载及短路电子变压器的结果很容易损坏，为了使卤素管轻轻变暗不断需要使用三端双向可控硅开关元件。 IR2161的挑战是提供了多种保护功能，灯电压调节和灰色，小型8引脚封装。
用于检测三高电压MOSFET半桥电压，开关死循环时检测到的电压接近零，在任何时候，在像半桥电压从轨道中发现了同一时间长相应的芯片可以自适应，以确保开关打开。通过这种自适应死区时间检测能力的使用，避免硬开关，从而减少了开关损耗。
控制IR2161卤素灯使用LED解决方案可以显着降低元件数量和更高的性能。和CFL市场，集成电路+ MOSFET技术，提高产品的可制造性和可靠性，有利于促进市场的进一步应用。
结论
新型CFL和卤素控制IC关于代表{zx1}的创新高电压电路技术，如零电压，保护开关，浪涌因素检测和自适应死区时间。为了迎接市场的挑战，这些创新技术将是关键因素，而且确保包装要求和成本限制。
New CFL and halogen lighting control IC to lead the market
Overview: At present, the global lighting market, the technologies used include magnetic fluorescent tube, electronic fluorescent tube, since the rectifier tube compact fluorescent (CFL), halogen and high-strength discharge HID.
electronic fluorescent tube technology uses different magnetic fluorescent tube light source of fat, the main applications include industrial buildings, small office lighting, residential and hotel lighting, halogen lighting, as well as retail and outdoor HID lighting. Apart from incandescent bulbs and magnetic properties Rectifier pieces, almost difficult to see a certain kind of hair or the light source control circuitry can be replaced by other technologies, each new type of LED technology has the corresponding applications, electronic fluorescent tube lighting technology Product as a result of the effectiveness of its energy will be further promotion.
HVJI technical
At present, the high-voltage isolation technology section (HVJI) in power electronics fields a wide range of applications, HVJI technology can ensure that low-voltage control circuit in the isolation tank and separated from the high-voltage 600V Therefore, in a single chip to realize the high side to low side of the driver the ability to control different power converter circuit topology, such as the extensive use of the totem pole half-bridge topology.
Lighting Control IC
IR2153 are using technology HVJI lighting IC, has the standard 555 integrated circuit timer and low-side driver circuit. IR2156 expanded IR2153 features, including pre-heating and error handling, etc., thus prolonging the service life, has increased the use of reliability. The IR2166 also increase active power factor correction (PFC) function to realize a full controlled rectifier single-chip solution. In IR2166, including two separate crystal oscillator, a control input rectifier, and the other control tube. However, in order to meet the new requirements of T5 fluorescent lamp control, IR2166 has an EOL pin lamp to detect the end of the life of the over-voltage, in order to achieve the high-pressure alarm or dangerous situations in a safe state to ensure rectification.
IR2520D small and practical
Another major market is the adoption of CFL lamp technology. Traditional control circuits are used since the vibration mode but also higher costs. Because of reliability problems in natural-based solutions has greatly hampered the rapid growth of the market.
IR2156 is able to meet the requirements of CFL control circuit, but with additional features. Although the IR2153 can not provide a complete solution, but very easy to use, it is only 8-pin, thereby reducing costs. New CFL control IC challenges remain rectifier miniaturization and provide the necessary functions, and not necessarily redundant pin 8.
So far, HVJI technology is mainly used to isolate high-voltage gate driver circuit and control circuit, chip IR2520D extends the sensing function to control the lighting. For a sensing function, the previous IC design required a separate pin, such as low DC bus, as well as over-current shutdown, such as lighting. IR2520D used HVJI technology and new control algorithms and sensor through a pin to signal the required parameters. This pin is the separation of high voltage DC bus and public side of half-bridge mid-point, which means that when the half-bridge low-side switch is turned on the completion of the measurement signal, when the half-bridge high-side switch to open circuit when the low-side half-bridge high-voltage withstand attack穿. IR2520D through the use of three internal high-voltage MOSFET to achieve this function, and use the new control algorithms such as factor ZVS protection and surge detection to complete the necessary rectification function, the remaining pin used to set the minimum working frequency and preheat time. Coupled with the high-frequency vibration feature to remove more than kHz frequency to obtain the minimum frequency to reduce the external EMI filter needs.
IR2161: HVJI technology new applications
existing natural rectifier solutions and relatively high cost pressure to the use of halogen-free technology, LED control challenges. As a result of overload and short-circuit electronic transformer easily damaged, in order to enable the halogen tube gently darken the continuous need to use a three-terminal bidirectional thyristor switching elements. IR2161 challenge is providing a wide range of protection features, lamp voltage regulation and dimmed and a small 8 pin package.
used to detect the three high-voltage MOSFET half-bridge voltage, and switching cycle of dead-time detected voltage close to zero at all times, at the same time as long as the half-bridge voltage detected from the orbit of the corresponding chip can be adaptively to ensure that the switch to open. Through the use of such adaptive dead-time detection capability, to avoid hard switching, thereby reducing switching losses.
control the use of IR2161 halogen LED solution can significantly reduce the component count and higher performance. And CFL markets, IC + MOSFET technology to increase the products manufacturability and reliability, help promote the further application of the market.
Conclusion
new type of CFL and halogen control IC on behalf of the latest innovative high-voltage circuit techniques, such as zero voltage switching protection, surge factor detection and adaptive dead-time. In order to meet market challenges, these innovative technologies are key factors, but also to ensure that the packaging requirements and cost constraints. (07-11-20)
Tags: , , ,