Sinrace Power Supply Technology (Shenzhen) Co., Ltd.
Why choose Sinrace?
What true advantages you will have if you choose us?
We are a professional manufacturer of power supply with 16years' history already, and we are always with you for offering you answers on power supply questions and supplying you with enthusiastic services. The emphasis and the main responsibility for us is to meet our customers's needs unceasingly.We believe those customers are our partners who shall build long-time and reliable business relationship with us.
Certifications
| Development trends and varieties of power technology |
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Development trends of power technology Modern power started at rectifier technology in the late of 1950s and early 1960s, its development has gone through the rectifier times, the contravariant times and frequency and conversion times, to promote the power technology in many emerging fields. The late 1980s and early 1990s developed power semiconductor multiple device which is representative as MOSFET and IGBT gathered high frequency ,high voltage and large current t, that shows the traditional power supply technology has entered a new era of modern power technology. Development trend of modern power technology (1) green, small. Low power consumption, low pollution, low current, high efficiency, high integration has become the mainstream of modern power technology, power technology development also depends on the development of electronic components and integrated circuits. (2) modular, intelligent. Modular power supply technology, including power unit and output unit modular modular. New switching power supply to the power switch and protection modules integrate a variety of output, so that further reduce the size of switching power supply. Output voltage regulator circuit modular, so that power in practical applications more flexible, convenient and smart. (3) figures, and diversification. With the development of digital technology and mature, more modern power supply to the digital direction. Using digital technology can reduce power high-frequency harmonic interference and nonlinear distortion, while allowing CPU digital control. Modern power supply with good EMC characteristics, self-generated high-frequency harmonic power decreases, reducing the environmental "pollution", while enhancing power in itself anti-jamming performance. Power supply varieties Classified according to the state input-output: AC-AC, AC-DC, DC-AC, DC-DC. Classified by work status: a linear power supply, switching power supply, diode power supply. Regulator with load connected by way of classification: the series-type power supply, a shunt regulated power supply. Output voltage adjustment by way of classification: fixed output power supply, adjustable power. With the power technology development, classification and definition of power has become increasingly blurred. For example, LA76810 AN5265 TV receiver integrates audio amplifier using 9V DC power supply, while the television receiver is not a direct output or a 9V DC output voltage regulator block 7809, but by 7812 after the 9V regulator output voltage and to the integrated diode circuitry. For fixed and adjustable power supply, 78 series and 79 series is commonly to use a fixed output voltage integrated circuit by electronic engineers , 317 and 337 are commonly to use a adjustable voltage output integrated circuit. Now 1085 can be 3.3V, also 1.7V output, by changing the external circuit resistance. Because of small size, high efficiency, PWM control loop, the output short-circuit and overload protection features , switching power supply have occupied the power market, linear power supply has been completed mission, and gradually fade into history. |
