Basic Info.
Product Description
Switching power supplies are different from linear power supplies in that the switching transistors used in switching power supplies are mostly switched between fully open mode (saturation zone) and fully closed mode (cutoff zone), both of which have the characteristic of low dissipation. Ideally, the switching power supply itself does not consume power. Voltage regulation is achieved by adjusting the on and off time of the transistor. Conversely, a linear power supply consumes electrical energy while the transistors are working in the amplification zone during the generation of the output voltage. The high conversion efficiency of switching power supplies is one of their major advantages, and because switching power supplies operate at high frequencies, they can use smaller, lighter transformers, so they are also smaller and lighter than linear power supplies.
MDR-10-12 the details as below:
| Model Specification | MDR-10-5 | MDR-10-12 | MDR-10-15 | MDR-10-24 | |
| Output | DC output voltage | 5V | 12V | 15V | 24V |
| Rated output current | 2A | 0.84A | 0.67A | 0.42A | |
| Output current range(Note:2) | 0~2A | 0~0.84A | 0~0.67A | 0~0.42A | |
| DC Output power | 10W | 10W | 10W | 10W | |
| Wave and noise(Note:3) | 80mVp-p | 120mVp-p | 120mVp-p | 150mVp-p | |
| Voltage accuracy | ±5.0% | ±3.0% | ±3.0% | ±2.0% | |
| Inlet stability(Note:4) | ±1.0% | ±1.0% | ±1.0% | ±1.0% | |
| Load stability(Note:5) | ±5.0% | ±3.0% | ±3.0% | ±2.0% | |
| Setup,rise,hold up time | 500ms, 30ms/230VAC 1000ms,30ms/115VAC(full load) 120ms/230VAC 25ms/115VAC(full load) | ||||
| Input | AC input voltage range and frequency | 85~264VAC or 120~370VDC | |||
| Frequency range | 47~63Hz | ||||
| Efficiency | 77% | 81% | 81% | 84% | |
| Input current | 0.33A/115VAC 0.21A/230VAC | ||||
| AC Inrush current | Cole-start current:35A/115VAC 70A/230VAC | ||||
| Leakage current | <1mA/240VAC | ||||
| Protection | Overload protection | Over 105% of the rated output power, protection mode: the protection of the. | |||
| Over-voltage protection | 5.75 ~6.75V | 13.8~16.2V | 17.25 ~20.25 V | 27.6~32.4V | |
| Protected mode:turn off the output,after power supply can resume normal output. | |||||
| Function | OK DC signal value | 3.75 ~6V /50mA | 9~13.5V / 40mA | 11.5 ~16.5V / 40mA | 18~27V / 20mA |
| Environment | Working temperature and humidity | -20ºC~+70ºC(Refer to output derating curve),20%~90%RH | |||
| Storage temperature and humidity | -40ºC~+85ºC,10%~95%RH | ||||
| Temperature coefficient | ±0.03%/ºC(0~50ºC) | ||||
| Vibration | 10~ 500Hz, 2G 10min,/1cycle, period for 60min, Each axes | ||||
| Standards | safety standards | Meet UL508,TUVEN60950-1 requirement (Not apply for the mark) | |||
| Withstand voltage | I/P-0/P:3KVAC I/P-FG:2KVAC 0/P-FG:0. 5KVAC | ||||
| Isolation resistance | I/P-0/P, I/P-FG, 0/P-FG:100M 0hms/500VDC/25ºC/70%RH | ||||
| Eletromagnetic compatibility emission | Conform to EN 55011,EN55022(CISPR22),EN61204-3 Class B,EN61000-3-2,-3 | ||||
| Eletromagnetic compatibility immunity | Conform to EN61000-4-2,3,4,5,6,8,11 EN55024,EN61000-6-1, EN61204-3,Class A light industry standard | ||||
| Others | MTBF standards | ≥584Khrs,MIL-HDBK-217F(25ºC) | |||
| Overall dimension | 22.5×90×100mm | ||||
| weight | 0.17Kg;72pcs/13.2Kg/0.91CUFT | ||||
Winding turns and wire specifications, etc., as well as the selection of capacitors.
The control circuit of the switching power supply compensation network design should meet the power supply of the transient performance indicators, so it belongs to the transient design. Switching power supply transient performance indicators are: the stability of the power system, speed (expressed in recovery time), transient response up and down impulse, power supply anti-disturbance (disturbance including transient disturbance of the input voltage, transient disturbance of the load a sudden increase or decrease in load) and so on. Since the main circuit parameters have a large relationship with the switching power supply transient response performance, the transient design should be carried out after the completion of the main circuit design.
The main contents of the optimal design of the switching power supply transient included: the selection of feedback control mode (voltage feedback or voltage and current feedback, called single-loop control and double-loop control, respectively), the circuit form of the compensation network (i.e., proportional, integral, differential or PID amplifier), the optimal design of the PID parameters, etc. The optimal design of the PID parameters, etc., should be carried out after the completion of the main circuit design.
In a linear power supply, the power transistors are allowed to operate in a linear mode. Unlike linear power supplies, PWM switching power supplies allow the power transistors to operate in an on and off state, where the volt-amp product applied to the power transistors is very small (low voltage and high current in an on state; high voltage and low current in an off state) / the volt-amp product on the power device is the resulting loss on the power semiconductor device.
Compared to linear power supplies, PWM switching power supplies work more efficiently by "chopping," i.e., chopping the input DC voltage into pulses equal to the amplitude of the input voltage. The duty cycle of the pulses is adjusted by the controller of the switching power supply. Once the input voltage is chopped into an AC square wave, its amplitude can be raised or lowered by the transformer. The output voltage value can be increased by increasing the number of secondary windings of the transformer. Finally, these AC waveforms are rectified and filtered to give a DC output voltage.
The main purpose of the controller is to keep the output voltage stable, and the process is very similar to that of a linear controller. This means that the controller's function blocks, the voltage reference and the error amplifier, can be designed in the same way as a linear regulator. They differ in that the output of the error amplifier (error voltage) goes through a voltage/pulse width conversion unit before driving the power tube.
Switching power supplies have two main modes of operation: forward conversion and boost conversion. Although the differences in the layout of their parts are small, the operating processes are quite different and each has advantages in specific applications.
Switching power supply products are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, power equipment, instrumentation, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, liquid crystal displays, LED lamps, communication equipment, audio-visual products, security monitoring, LED lights, computer cases, digital products and instruments and other fields.
OMCH is a professional manufacturer of industrial automation in China. It is specialized in manufacturing and marketing proximity sensor, photoelectric sensor, switching power supply, LED waterproof power supply, solid state relay, solid state voltage regulator, miniature relay, general purpose relay,rotary encoder, water-level controller, digital counter, time relay, time controller, float switch, rope switch, pressure transmitter,magnetic switch, area sensor, laser sensor. temperature controller and optical amplifier.
We get many certificates: Photoelectric Sensor CE Certificates, Proximity Sensor Certificates Rotary Encoder CE Certificates, SSR CE Certificates, Switching Power Supply CE Certificates etc.
we attended many abroad exhibitions: Iran, Canton Fair. Germany. Let our products proximity sensor, photoelectric sensor, switching power supply, SSR Relay, Minature Relay, Rotary Encoder etc become the famous brand in the world.