Home > categories > Electrical Equipment & Supplies > Switching Power Supply > I have a switching power supply JMD20 ~ d1 I will not use: how two AC input? What is FG?
Question:

I have a switching power supply JMD20 ~ d1 I will not use: how two AC input? What is FG?

How are two ac inputs connected to the socket? G1 and G2 and FG is not connected together, and then connected to the chassis? thank you

Answer:

AC means AC, FG connection housing, G is GND representation. Know what it means to pick up the simple. Method is important, the results of a look to know
According to your instructions to write your power is two output, Two AC terminals through the power cord can be directly connected to the socket, no positive and negative points; FG is the power and the earth (that is, the chassis) connected; In the order you say, G1 and V1 are a group (G1 is this negative, V1 is positive); G2 and V2 are a group (G2 for this road negative, V2 is positive); Note: FG and G1, G2 can not be mixed!
Fg is the power supply and the earth (that is, the chassis) connected; g1 and V1 is a group (g1 for this road negative, V1 is the positive); the two ac terminals through the power cord can be directly connected to the socket, no positive and negative points; G2 and V2 are a group (g2 for this negative side, V2 is positive). Switching power supply is the use of modern power electronics technology to control the switch on and off the time ratio, to maintain a stable output voltage of a power supply, switching power supply generally by the pulse width modulation (PWM) control IC and MOSFET composition. With the power electronics technology development and innovation, making switching power supply technology is constantly innovating. At present, the switching power supply to small, lightweight and efficient features are widely used almost all of the electronic equipment, electronic information industry is the rapid development of an indispensable power supply.
Two AC termination AC inputs, FG in the AC / DC power supply on behalf of the shell, G1 and V1 are groups, G2 and V2 are groups, G is negative pole V is positive.

Share to: