Piezo Haptic Actuators - PowerHap
Z63000Z2910Z1Z44
Application note for evaluation kit 60 V
Preliminary data
PPD PI AE/IE PD
2019-05-08
Please read Cautions and warnings and
Page 10 of 28
Important notes at the end of this document.
3.3 DIP switch settings
The evaluation PCB is provided by default with S3 DIP switch set to unipolar operation with only channel A
enabled. It is recommended to toggle these switches only when not playing waveforms.
Table 3: DIP switch settings
DEFAUL
T
SWITCH
OFF
ON
OFF
SW1
Unipolar (-10V/+60V)
Full-scale (-95V/+95V)
OFF
SW2
Differential out config*
Single ended config*
ON
SW3
Only channel A ON
Both channels ON
ON
SW4
Press-release feedback
on channel B
Multipress feedback on channel B
ON
SW5
100 Hz feedback
180 Hz feedback
ON
SW6
75% amplitude feedback 100% amplitude feedback
ON
SW7
Low sensitivity feedback High sensitivity feedback
OFF
SW8
Future use
Future use
* Refer to the according section for more details on output configurations.
SW1
The output ranges listed for SW1 settings are for full amplitude input signal, for example -1 to +1 when
using Audacity® software. When using TDK PowerHap™ 2.5G piezo actuator, set SW1 to OFF.
More precisely, this switch sets the maximum and minimum values allowable for the selected range. It
does not affect the gain and offset conversion between the input signal and the output voltage. If the
requested voltage is out the range, the firmware will clip the signal to the limits of the range. Therefore,
a single conversion equation is used for the same voltage in both ranges. The relation between the
input signal value and the output voltage is:
𝑆𝑖𝑔𝑛𝑎𝑙
𝑉𝑜𝑙𝑡𝑎𝑔𝑒
95 𝑉
Thus
signals of +1, -1 and 0 correspond to 95 V, -95 V and 0 V respectively. To generate a 60 V
output, the signal should be 60 V/95 V = 0.631.
SW2
Refer to the according section for configuration details. Sensing is not possible in single-ended
configuration.
SW3
SW3 determines how many channels are active. Set SW3 to OFF to activate only channel A. Set SW3
to ON to activate both channels. When a channel is activated it can sense pressure and give
feedback, and it can play waveforms.
SW4
When both channels are active (SW3 is ON), set SW4 to OFF to have both channels feedback a
single click. Setting SW4 to ON will maintain channel A to feedback single clicks but channel B will
give three feedback response levels depending on the exerted pressure. A low-level pressure triggers
a single light click, medium pressure triggers a stronger click, and a high pressure triggers a longer
feedback.
SW5
SW5 sets the frequency of the feedback response when the actuator is pressed and released.
