Stimulus Isolator (A.M.P.I.)


ISO-Flex is a flexible stimulus isolator because it is optically isolated.  You can switch the unit to constant current or constant voltage by the CURRENT/VOLTAGE switch.



Input: 5 V - 10 V

Voltage output:  0 V - Veffective  [V]

Veffective = Vbattery - 3V.

Current output: 0 - 10 mA.

The output is divided into 3 ranges.


ISO-Flex has not been approved for direct patient use.


You can connect two isolators to get bipolar pulses.
The connection is as follows:


Each isolator should receive its input at its proper time: One to drive the positive phase of the bipolar pulse and the other to drive the negative phase.

In the constant voltage configuration both isolators should be set to constant voltage and in the constant current configuration both isolators should be set to constant current.

Many stimulus isolators are designed to work with only one specific high voltage battery.  If this battery needs to be replaced and you find it to be discontinued in the market, your work may be delayed or you may even have to replace the isolator.  Due to the battery flexibility of ISO-Flex you are free of such worries.

ISO-Flex is supplied with 2 batteries: a standard 9 V battery in the ISO-Flex box and a 90 V battery in the battery housing.  The 9 V battery is used for operating the isolator.  The 90 V battery is used to drive the output pulses.  ISO-Flex is a flexible isolator since you can replace the 90 V battery with any kind of battery in the range of 9 V - 100 V.  The battery housing is designed to hold about 80 % of the high voltage batteries available in the market. You can also use a special large battery without the battery housing.