lot of people are asking how we did it! The patent for the
iXP1-500 is filed so we can disclose some information regarding
the power circuit.
iXP1 power circuit uses multiple resistors. Resistors restrict
and direct the flow of electric current. In our circuit,
resistors are used to direct current flow to particular
parts of the circuit. They are being used to determine the
voltage gain of an amplifier. The resistors control the
signal to permit the iPad to charge. Most electronic circuits
require resistors to make them work properly. This control
of the current flow is exactly what the resistors in our
circuit design are doing with the iPad to make it work properly
with standard USB ports on desktop and laptop computers.
type of resistors and the values of each resistor is very
critical to the iXP1-500 power circuit design. A standard
USB cable pin descriptions are shown in the chart below.
For the standard USB cable to sync as well as to charge
an iPad from a PC is problematic because of the voltage
the iPad requires. Effectively by changing the USB cables
electric circuit configuration of the attaching pins permits
charging. The way the pins are wired from the male USB connector
to the female USB connector of the iXP1-500 with the resistors
is also required for the charge capability of the iPad by
PCs. In addition the iXP1-500's power circuit permits car
adapter and hubs to be used for charging as well.
USB Pin Chart
more about resistors and how they work.
Power Circuit Patent Pending
Xmutliple Customer Service at 1-800-753-9526.