Construction Of Voltage Stabilizer
A typical switched-capacitor converter includes four large MOS switches, with the switching sequence typically being the switch followed by doubling or halving the input power supply voltage. Energy transfer and storage are provided by external capacitors. The company, for example, has conducted a qualitative and quantitative analysis and forecast of the industry's development trends based on issues related to the market environment, production and operation, import and export, industry investment environment, and sustainable development of isolation transformer products in my country. We specialize in the production, R&D, and sales of low-voltage supporting products such as transformers, voltage stabilizers, and voltage regulators. Adhering to the principle of enterprise innovation, our main products include: SBW high-power compensated voltage stabilizers, SBW-F individually adjustable voltage stabilizers, SVC high-precision fully automatic AC voltage stabilizers, precision purification voltage stabilizers, microcomputer contactless voltage stabilizers, SG/SBK isolation transformers, OSG/QZB autotransformers, ZSG/ZDG rectifier transformers, SSG servo transformers, DN resistance-welded water-cooled transformers, reactors, contact-type autotransformers, column-type high-power electric voltage regulators, and other complete sets of electrical equipment. Our products feature novel designs, small size, beautiful appearance, low loss, low noise, and impact resistance. They are widely used in industrial and mining enterprises, textile machinery, printing and packaging, petrochemicals, schools, shopping malls, elevators, postal and telecommunications, medical equipment, and all other applications requiring guaranteed voltage. In the first part of the switching cycle, the input voltage acts on a capacitor (C1). In the second part of the switching cycle, charge is transferred from C1 to a second capacitor C2. The most traditional switched-capacitor converter is constructed as a reverse converter, where C2 has a grounded positive terminal and its negative terminal carries a negative output voltage. After several cycles, the voltage across C2 is applied to the input voltage.
Assuming no load on C2, no losses on the switches, and no continuous resistance in the capacitor, the output voltage will be exactly the negative of the input voltage. In reality, the efficiency of charge transfer (and consequently the accuracy of the output voltage) depends on the switching frequency, the resistance of the switches, the value of the capacitor, and the continuous resistance. A similar topology voltage doubler uses the same switches and capacitor bank but changes the ground connection and the input voltage. Other more complex variants use additional switches and capacitors to achieve different ratios of input to output voltage, and in some cases, use a special switching sequence to produce a fractional relationship (e.g., 3/2). In their simplest forms, switched-capacitor converters are not regulated. Some newer National Semiconductor switched-capacitor converters have automatically adjusted gain levels to produce a regulated output; other switched-capacitor converters use a built-in low-dropout linear regulator to produce an unregulated output.
