Power module can be directly mounted on the printed circuit board, power supply has two types, a step-down and step up, its characteristic can be devided into application-specific integrated circuit (ASIC), digital signal processor (DSP), microprocessor, memory, field programmable gate array (FPGA) and other digital or analog load to provide power supply.
DC - DC converter Power module are realized by the concept of switch power supply. DC - DC converter has a step-down and step up. If send 10V to DC - DC converter, DC - DC converter has internal oscillator and chopping module, for example, in a time period allows 10 v get through, another time is not allowed to 10 v get through (equal to 0 v). And on the output side has a filtering capacitor, as long as the capacitance is large enough, the result is equivalent to the middle of the pulse waveform of calculus, and a 5 v dc output waveform.
- Small dimension,high reliable
- Output voltage stability,accuracy ±3%
- High performance price
- Multipal input and output
- Build-in input filter,lowe electromagnetic compatiblility features
- aluminum shell sanded oxidation, six sides shielding
- typical application: industrial instruments, digital circuit, electronic communication equipment, satellite navigation, remote sensing, remote sensing and ground communication of scientific research equipment, and other fields
1. input characteristic
input voltage range:9VDC-18VDC,18VDC-36VDC,36VDC- 72VDC,72VDC-144VDC 9VDC-36VDC
2. output characteristic
Transient : overshoot magnitude; ±5%V Recovery time ：200us
Effect : source effect: ±2%V Effect of load ：±5%V
Protection: over voltage, over current, short circuit
A working termperature：-25-75℃
B storage temperature：-40-85℃
C humidity: 10RH～90RH
D Max shell temperature: +90 degree
Output voltage steady regulation accuracy : ±1%
MTBF : 8*100000 hours
Isolation Voltage: input and output 1500VDC
Ripple and noise: ≤50mVpk-p
- 1. Power, mainly on integrator and electric meter and smart meters
- 2. Industrial control, industrial control field
- 3. Health care, medical equipment, mainly to protect the tire gauge, monitor, etc. 4. Military, Military industry is very widely used In the military equipment.
power P = UI
input voltage has AC input and DC input
output voltage is DC output mostly,but also has AC output
isolation voltage: isolation voltage isolation is the separation of the output and input circuit.there are several founctions below:
1. current transformation
2. in order to avoid interference between input and output
3. the huge difference between input and output circuit of signal characteristics, such as with weak signal control of high voltage equipment, package size have a pin, patch, and screw.
Output has a single output, dual output and multipal output. general speaking, this power module is called load point (POL) power supply system or use some power supply system (PUPS). Because there are a lot of the advantages of the modular structure, power module is widely used in switching equipment, access equipment, mobile communications, microwave communications and optical transmission, routers and other communications and automotive electronics, aerospace, etc.