DLC5000 switching DC voltage and current stabilized switching power supply has the advantages of high efficiency, high reliability, easy maintenance, compact chassis structure, anti-corrosion and heat dissipation have also been strengthened in many aspects. Compared with traditional thyristor power supply, it saves 20%-30% of power.
This series of power supplies have the functions of constant voltage, constant current working mode automatic switching, over-voltage protection circuit, over-temperature protection circuit and short-circuit protection function. For the convenience of use, this power supply also adds the functions of presetting and viewing constant voltage value, constant current value and overvoltage protection value. In order to adapt to the sophisticated capacitor use of capacitor manufacturers, discharge and pulse veteraning functions can also be selected.
The basic principle of switching power supply is to use power semiconductor devices as switching elements, and control the duty cycle of switching elements to adjust the output voltage through periodic on-off switches. This design approach can improve the efficiency of the power supply, while also reducing the size and weight of the power supply. In the switching power supply, the DC-DC converter is a device that converts the power and is the core component of the switching power supply. In addition, there are start-up circuits, over-current and over-voltage protection circuits, noise filters and other components. The feedback loop detects its output voltage and compares it with the reference voltage, and its error is amplified by an error amplifier, and then drives the power tube to change its duty cycle to keep the output voltage stable.
The steps of designing a switched-mode DC regulated power supply include the following parts: First, according to the grid supply voltage and the required low-voltage DC output, the power transformer is used to reduce the grid voltage to obtain the required AC voltage. Then, the AC voltage is turned into a unidirectional direct current by means of a rectifier circuit, but its amplitude varies greatly (i.e., the pulsation is large). Next, the fluctuating DC voltage is converted into a smooth, low-pulsating DC voltage through a filter circuit, that is, the AC component is filtered out and its DC component is retained. Finally, the filtered DC voltage is stabilized through a voltage regulator circuit to obtain a stable DC voltage output that is largely unaffected by the outside world and supply the load.
DLC5000 series products are an ideal DC regulated power supply, which can be widely used in factories, schools, research institutes, laboratories and various sectors of the national economy.
Specification range: output voltage 0 1000V, output current 0 10000A, output power 0 200KW optional.
Constant voltage and constant current: The voltage and current value can be continuously adjusted from zero to the rated value, and the constant voltage and constant current are automatically converted.
Overvoltage protection: The voltage protection value is 0 110% of the rated value is continuously adjustable, and the output is cut off when the output voltage exceeds the voltage protection value.
Short Circuit Protection: Allows long-term short circuit or short circuit boot in any working condition.
Overload Protection: When the power supply or load fails, and the output voltage exceeds the set value, the power supply cuts off the output.