Pelko offers six series of DC cooling fans to meet most customers'needs in terms of price, performance, energy efficiency and functionality, these self-restarting fan models can be divided into three series: C and R series: Standard Series:...
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162020-04
Pelko heat sink fan series and functional description172020-04
What is the starting voltage of the DC fan?The starting voltage of the DC fan depends on the following two points: 1. This minimum voltage must provide sufficient and continuous bias voltage to the fan control circuit. This minimum voltage must be higher than the trigger voltage of ...
172020-04
Method for defining the life of DC fansDC Fan product parameters including operating current, speed, temperature rise and noise, must be measured and recorded before the start of the life test. Then the life test can start, and record the start date, life test prototype must be ...
182020-04
DC FAN PWM speed role?DC Fan this function is to use pulse width modulation signal to control the fan speed, pulse signal frequency range: 30hz-30khz. The high-level voltage of the pulse signal can be any voltage between 3 and 10V, and the low-level voltage of t...
202020-04
Why is RPM IMPORTANT FOR DC fans?Many manufacturers choose DC fan manufacturers, first consider the use of the environment and needs of what characteristics, and then according to these standards to find their own fans, what RPM stands for, hOW IMPORTANT IS RPM? One way to...
202020-04
How to choose a good DC FAN?All DC fan manufacturers use almost the same raw materials, assuming that there is no serious defects in the product, then the fan life is mainly determined by the life of bearings (ball bearings) . In addition to the effect of ball bea...
212020-04
What is the difference between DC FAN and AC fan?The application of DC fan and AC fan is very extensive, can be used according to different environment to choose, in life is also an indispensable accessories. DC Fan power consumption is low, high efficiency, low noise, long service life, ...
212020-04
The function of RPWM TO DC FAN?DC Fan this function is to use external adjustable resistance to control the speed, this adjustable resistor, can be 10K to the maximum of 100K between any resistance, the fan speed will be proportional to the resistance of the adjustabl...
222020-04
The constant speed function of axial flow fan?Constant speed refers to the axial flow fan in the rated voltage to the fan's maximum bearing voltage range, speed remains constant. If a 48V fan has an on-line voltage of 110V, the fan maintains its rated speed when the supply voltage i...
222020-04
What is the reason that affects the life of DC fan?DC Fan life mainly with the use of bearings, the operating temperature of the fan environment, the balance of the fan, the general product life will be limited by a number of conditions, then look at what conditions? 1. The temperature of t...