Sinrace Power Supply Technology (Shenzhen) Co., Ltd.

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Why choose Sinrace?

What  true advantages you will have if you choose us?

We are a professional manufacturer of  power supply  with 16years' history already, and we are always with you for offering you answers on power supply questions and supplying you with enthusiastic services. The emphasis and the main responsibility for us is to meet our customers's needs unceasingly.We believe those customers are our partners who shall build  long-time and reliable business relationship with us.

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Definition of AC and DC PDF Print E-mail

Definition of AC
AC stands for "alternating current." The polarity of the electric charge switches from positive to negative, or alternates, at a fixed rate. For typical household current in the United States, the alternation rate is 60 cycles per second.

Definition of DC
DC stands for "direct current." The polarity of the electric charge does not switch back and forth. This is why one end of a battery is positive, and the other end is negative. Current flows from the negative end of the battery, through the device being operated and back to the battery at the positive end.
 
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