In the past ten years, my country has also made great progress in the secondary DC power supply products of exchange and transmission equipment. In order to meet the development trend of layered power supply and sub-board power supply for switching equipment, the switching clock frequency of the PWM working mode DC/DC module power supply independently developed and produced in my country in the late 1980s has reached more than 100 kHz. The more advanced surface mount technology (SMT) abroad makes the module power supply circuit compact in structure and small in distribution parameters. The shell adopts continuous six-sided metal shielding, which has better electromagnetic compatibility. The power-to-volume ratio is 0.21 W/cm, the typical power efficiency of the module with -48 V input and 5 V output is 80%. The output can reach four channels and has a complete protection function. Compared with the foreign module power supply in the Chinese market, the market price is only half of the same foreign module power supply.
Around 2000, due to the application of new technologies such as synchronous rectification, soft switching and active box position and the application of new materials such as aluminum substrate and ceramic substrate circuit board, and the switching clock frequency has been greatly improved (about 500 kHz or more), by This enables the power-to-volume ratio of the module power supply to reach 5~6 W/cm3, the conversion efficiency is generally greater than 80%, the minimum output voltage can reach about 1V, and the output power of a single module (whole brick) can reach 700~1000 W, and can reach Technical requirements for industrial and military grades.
The modular power supply can be used to easily and flexibly form rack power boards of various specifications, and parallel and hot backup work can be realized on the rack. The modular power supply has completely replaced the DC/DC converter made of discrete components, making the exchange The equipment realizes layered power supply, which makes it a reality to further improve the operation reliability.
This GZDW series DC power panel is a robust and intelligent solution designed for 10–500kV substations, power plants, and industrial facilities. It provides reliable DC power for high-voltage switchgear, relay protection, automation systems, and emergency lighting. Key features include a plug-and-play design for rectifier and monitoring modules, an LCD controller with automatic battery management, and support for multiple communication protocols (RTU, CDT, MODBUS). The system accommodates…
– BWITT has issued its latest innovation in power management: the STS-380VAC Static Transfer Switch series. Designed for seamless and reliable power transfer, this new product line ensures uninterrupted power supply with a switching time of ≤4ms, making it ideal for critical applications in data centers, industrial automation, and telecommunications. The STS series features high-speed thyristors, an intelligent control board, and robust circuit breakers, operating on…
A communication inverter converts DC power (from batteries) into stable AC power for critical loads. Its working principle involves: 1. DC-AC Conversion: Using PWM (Pulse Width Modulation) and IGBT transistors, it transforms 48V/24V DC into 220V/110V AC. 2. Voltage Stabilization: Filters and regulators ensure clean, sine-wave output. 3. Synchronization: Aligns frequency/phase with grid or UPS for seamless switching. Integration in a Rack: - Batteries supply DC…
Bwitt’s STS Single Phase Static Transfer Switch has become a standout product at recent international exhibitions in Vietnam, Indonesia, Russia, and Turkey, earning widespread praise for its competitive pricing, reliability, and advanced features. Designed for power supply transitions, the STS ensures uninterrupted load operation by automatically switching to a backup source within ≤4ms during input abnormalities, making it ideal for critical applications. With a 16–125A…
Bwitt has launched the RCT-2000 Series, a modular 48VDC 50A rectifier system designed for telecom and industrial environments. With an impressive 93.2% efficiency and a wide AC input range of 90–290VAC, this "green" power solution supports applications like 5G base stations, SCADA networks, and railway systems. The system delivers 3000W output at 53.5VDC and features advanced protections, including overvoltage and short-circuit safeguards. Equipped with Modbus, RS485, and TCP/IP communication ports, the rectifier enables remote monitoring…
This GZDW series DC power panel is a robust and intelligent solution designed for 10–500kV substations, power plants, and industrial facilities. It provides reliable DC power for high-voltage switchgear, relay protection, automation systems, and emergency lighting. Key features include a plug-and-play design for rectifier and monitoring modules, an LCD controller with automatic battery management, and support for multiple communication protocols (RTU, CDT, MODBUS). The system accommodates…
– BWITT has issued its latest innovation in power management: the STS-380VAC Static Transfer Switch series. Designed for seamless and reliable power transfer, this new product line ensures uninterrupted power supply with a switching time of ≤4ms, making it ideal for critical applications in data centers, industrial automation, and telecommunications. The STS series features high-speed thyristors, an intelligent control board, and robust circuit breakers, operating on…
A communication inverter converts DC power (from batteries) into stable AC power for critical loads. Its working principle involves: 1. DC-AC Conversion: Using PWM (Pulse Width Modulation) and IGBT transistors, it transforms 48V/24V DC into 220V/110V AC. 2. Voltage Stabilization: Filters and regulators ensure clean, sine-wave output. 3. Synchronization: Aligns frequency/phase with grid or UPS for seamless switching. Integration in a Rack: - Batteries supply DC…
Bwitt’s STS Single Phase Static Transfer Switch has become a standout product at recent international exhibitions in Vietnam, Indonesia, Russia, and Turkey, earning widespread praise for its competitive pricing, reliability, and advanced features. Designed for power supply transitions, the STS ensures uninterrupted load operation by automatically switching to a backup source within ≤4ms during input abnormalities, making it ideal for critical applications. With a 16–125A…
Shenzhen Bwitt Co., Limited, a leading innovator in power conversion solutions, is proud to announce a significant milestone: securing a European order for 300 units of its advanced **110VDC/220VAC 3KVA Pure Sine Wave Inverters. This achievement underscores Bwitt’s growing global reputation for reliability and cutting-edge technology in the telecom and industrial sectors. The DT-1000 Series inverter, designed for 19-inch rack mounting, delivers 3000VA/2400W** of pure sine…