New Concept of DC Power Supply: Low Ripple and Easy-to-operate Digital DC Power Supply
New Concept of DC Power Supply: Low Ripple and Easy-to-operate Digital DC Power Supply
DC power supply (DC Power Supply) is generally divided into linear power supply and switching power supply. Linear power supply is generally not large in power and heavy in weight due to the size and weight of the transformer. Ripple is also large.
Traditional power supplies generally use pointer or digital to display the current voltage or current, and use potentiometers to adjust the desired voltage and current output values. If you want to adjust the precise voltage output in use, you must use accurate display instruments for monitoring. Because the resistance characteristic of the potentiometer is non-linear, it takes a certain amount of time to adjust it, and you have to be careful of drift, so you have to make it simple in the end! !
1. Basic structure
The 12-bit D/A converter is used to determine the resolution of the voltage and current (increases or decreases with the size of the voltage, current, and capacity), and the voltage and current sensing (+S) at the output terminal enables the CPU to automatically detect for you The current output status does not need to worry about whether output drift occurs, and solves the problems caused by fluctuations in mains power, that is, power supply effect and load effect. Users can clearly see the current output voltage and current status on the LCD display. Because it is controlled by a single-chip microcomputer, you only need to directly input the required value on the button, and you can get an accurate output. A digital DC power supply with simple operation and excellent value for money is born.
2. Features:
1. Direct panel calibration: The most troublesome thing about the whole instrument is the accuracy drift caused by the aging of parts. Therefore, regular calibration is necessary, which is also clearly regulated in the ISO-9000 system. However, in general calibration, it is time-consuming, laborious and expensive, and the lack of equipment for calibration workers creates a production bottleneck. Self-calibration, open the case, dense parts and don't know how to start, let Motech intelligent power supply handle these. You only need to easily press a few keys on the panel to complete the calibration procedure, saving time and effort and not requiring regular ISO-9000 calibration.
2. Intelligent expansion: Traditionally, if you bought a power supply such as 30V/2A, this specification only limits the user to use a maximum of 2A, and if you want to use 4A, you have to buy another one, which is a waste of money. Motech’s intelligent power supply has automatic switching between High and Low Modes. When you want to use 4A, the voltage can be automatically expanded to 4A within 15V. One can be used as two, which is economical and affordable.
3. RS-232 interface expansion: The power supply with and without interface are originally two fields, and the design methods are also different. In order to seek economic benefits, increase competitiveness and ensure product quality, automated production testing is imperative.
Motech digital power supply LPS series can be directly expanded into RS-232 interface design, when you want to expand into a programmable power supply, LPS series is what you think.
4. Single-step output function: In design development or quality inspection, it is often necessary to use different voltage values to verify circuits or product components. Such as the voltage-frequency conversion circuit commonly used in design, whether the product affects the function of different input voltages, the withstand voltage characteristics or voltage control characteristics of components, etc.
In order to solve the problems faced by customers, Motech's digital power supply provides a single-step output function, with a minimum change of 10mV each time, such as: 12.34---->12.35---->12.36, to verify the linearity of the circuit or components .
5. True constant current source characteristics: general power supply provides short-circuit protection function, but there is a danger of burning the triode when the constant current source is used for a long time. Motech's digital power supply provides constant current mode (Constant Current Mode; CC), which can set the constant current value output arbitrarily, and can be applied to factories that require constant current equipment such as electroplating factories.
