Chonda international technology Co.,Ltd is a rapidly-expanding porfolio of switching regulator products serving the Military and Medicare industries on AC DC converters and DC DC converters field.All products combile CHONDA's advanced process with the company's strong expertise design and research to produce the best in class products to offer to the customers.The products are dressed up step-down,step-up and multi-output systems,catageries as DC DC fixed input converter,DC DC width input converter,AC DC converter,100V-500V high voltage output converter and 100V-1000V high input voltage converter,applications in railway,instruments,car,tracker,etc... 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.

1. 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.
The set down process has successfully against the power exhausted on the power
modules. and internal shock part control the duty ratio can change the value of the output
voltage (within 10 v), making the output constantly (such as DC - DC converter input
range is from 6 v to 16 v, output 5V, only if within the scope of this input, the output is 5
v ,there are only zero point zero a few volts difference.
Features:
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
2. output characteristic
Transient :
overshoot magnitude; ±5%V
Recovery time ：200us

2. Effect : source effect: ±2%V
Effect of load ：±5%V
Protection: over voltage, over current, short circuit
Temperature:
A working termperature：-25-75℃
B storage temperature：-40-85℃
C
humidity: 10RH～90RH
D
Max shell temperature: +90℃
Output voltage steady regulation accuracy :
±1%
MTBF : 8*100000 hours
Isolation Voltage:
input and output
1500VDC
Ripple and noise: ≤50mVpk-pk
DC DC converter Several indicators
power P = UI
input voltage has AC input and DC input
output voltage is DC output mostly,but also has AC output
working temperature
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.
DC DC converter advantages