Cedrat Technologies CAu10 Instruction Manual

CEDRAT TECHNOLOGIES URL: http://www.cedrat.com
15 Chemin de Malacher - Inovallée Email: [email protected]
F-38246 MEYLAN Cedex Phone: [phone]
FRANCE Fax: [phone]
CAu10 - MINIATURE LINEAR AMPLIFIER FOR
PIEZOELECTRIC ACTUATORS
PRODUCT AND WARRANTY INFORMATION
Version : .2.
Date: 1/04/09

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 2/19 Version 3.2.3 - 31/04/09
CAUTION: READ BEFORE OPENING
For safety purposes these instructions must be read before use of this product.
This driver board is dedicated to multilayers piezoelectric actuators.
Only qualified personnel should work on or around this equipment and only after
becoming thoroughly familiar with all warnings, safety notices, and procedures
contained herein.
The successful and safe operation of this equipment is dependent on proper
handling, installation and operation.
A "qualified person" is one who is familiar with the installation, construction and
operation of the equipment and the hazards involved. In addition, he/she has the
following qualifications :
• is trained and authorized to energize, de-energize, clean, and ground
equipment in accordance with established practices,
• is trained in the proper care and use of protective equipment in accordance
with established safety practices.

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 3/19 Version 3.2.3 - 31/04/09
TABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
1. SYNOPTIC ....................................................................4
2. GENERAL DESCRIPTION....................................................6
2.1. Introduction.......................................................................................................6
2.2. Main connections...............................................................................................7
2.3. Analogue connections.......................................................................................7
2.4. Protocol for SPI transfer ..............................................................................7
2.5. Interpolation filters ........................................................................................9
. OPERATING INSTRUCTION FOR THE MINIATURE CAU10
DRIVE ELECTRONIC....................................................... 10
3.1. General instructions....................................................................................... 10
3.2. Voltage control and current limitation ...................................................... 10
3.3. Using the push–pull mode.............................................................................. 10
4. TROUBLE SHOOTING ..................................................... 12
5. WARRANTY CONDITIONS AND EXCEPTIONS ........................ 1
6. INSPECTION UPON RECEIPT ............................................ 1
7. AFTER-SALES SERVICE .................................................. 1
ANNEX 1 : CAU10 TECHNICAL DATASHEET................................ 15
ANNEX 2 : EFFECT OF THE CURRENT LIMITATION ...................... 16
Ratings of the CAu10 board on piezo actuator series....................................... 17
ANNEX : UNDERSTANDING THE FACTORY VERIFICATION
SHEET ...................................................................... 18
ANNEX 4 : TROUBLE SHOOTING FORM..................................... 19

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 4/19 Version 3.2.3 - 31/04/09
1.
1.1.
1. SYNOPTIC
SYNOPTICSYNOPTIC
SYNOPTIC
The miniature drive electronics CAu10 is a double-channel linear amplifier for
piezoelectric actuators with the following dimensions:
27 * 25 mm.
The following scheme gives the top view of the electronic board.
Figure 1 – Top view of the CAu10 drive electronic

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 5/19 Version 3.2.3 - 31/04/09
The CAu10 board has 3 Hirose type connectors:
R EFERENCE D ESIGNATION
1
st
connector
P1 - Piezoelectric load : DF13-5P 1.25DS Hirose connector
GND Piezo ground
Out 1 Channel 1 output voltage
Out 2 Channel 2 output voltage
+150V DC 150 V (for push pull operational mode)
Aux Not used
2
nd
connector P2 – SPI link – analog order : DF13-8P 1.25DS connector
\Sync SPI command. Provide synchronisation line for SPI protocol
Din Data Line to command the digital to analogue converter: 16 bits word
Sclk SPI command. Clock signal for SPI protocol
\Ldac SPI command. Provide synchronisation signal for the 2 channels to convert
synchronously the 12 bits words in analogue signals
3V3 DC Supply : 3.3 V
InAna1 Analogue order – channel 1 (comprised between 0 and 3.3 V)
InAna2 Analogue order – channel 2 (comprised between 0 and 3.3 V)
Gnd Ground
rd
connector P3 – DC Supply : DF13-2P 1.25DS connector
Battery Battery supply (comprised between 3.3 – 15 V)
GND Ground
The corresponding female connectors are:
-Fiche DF13-5S 1.25C
-DF13-2630 SCF
WARNING
A special care in the use of the connectors should be taken in plugging and
unplugging them: you have to pull onto the connector and not the cable.
It is strictly forbidden to connect the 2 electrical output channels in
parallel.

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 6/19 Version 3.2.3 - 31/04/09
2.
2.2.
2. GENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
2.1.
2.1.2.1.
2.1. Introduction
IntroductionIntroduction
Introduction
The miniature drive electronic CAu10 is dedicated to the supply of piezoelectric
actuators based on multi-layers piezoelectric ceramics such as APA or PPA from
CEDRAT TECHNOLOGIES or benders. The CAu10 consists in a drive electronic
with a maximal power given in the attached technical data sheet including
(Figure 2):
•A DC/DC converter based on a capacitive multiplier
•Two linear amplifiers dedicated to capacitive load allowing excitation of
piezoelectric actuators between 5 and 150 V
•A SPI link able to read a digital command.
The miniature CAu10 driver amplifier can also operate in push-pull mode to drive
XY stages or DTT mechanisms from CEDRAT TECHNOLOGIES.
DC/DC
converter
Linear amplifier #1
Linear amplifier #2
Battery
SPI Bus
3v3
Converter power
supply
+150V
Push pull connection
Out1
Out2
Interpolation
filters
Optional
Analogue input
Figure 2 – Synoptic of the CAµ10 driver

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 7/19 Version 3.2.3 - 31/04/09
2.2.
2.2.2.2.
2.2. Main connection
Main connectionMain connection
Main connection
Connect the CAµ10 driver with the following AWG30 cable on the different
soldering pads.
1. Battery & its return line : To supply the high voltage amplifier
2. SPI bus or optional analogue signals: \SYNC DIN and SCLK are the main
signals. However if synchronisation between the channels is required
connect \LDAC to synchronise the output DAC with \LDAC signal.
3. 3v3 signal & its return line: To supply the DA converter
4. OUT1 OUT2 +150V and their return line GND: Twist the cables to suppress
EMI-RFI perturbations.
2.3.
2.3.2.3.
2.3. Analogue connection
Analogue connectionAnalogue connection
Analogue connection
In the case where the order is an analogue signal its possible to send directly
this signal (if its range is in the range of the input driver- See datasheet) on the
input of the high power amplifier. The following instruction must be apply to
avoid damage: the input tension must be lower than 3.3V.
2.4.
2.4.2.4.
2.4. Protocol for SPI tran fer
Protocol for SPI tran ferProtocol for SPI tran fer
Protocol for SPI tran fer
The protocol to control the Digital to Analogue converter is based on the SPI
protocol. A same circuit provides the 2 output analogue signals from only one
serial data transfer.
Figure 4: SPI timing diagram

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 8/19 Version 3.2.3 - 31/04/09
Mnemonic Description
\LDAC
Active Low control Input. This pin transfers the contents of the input
registers to their respective DAC registers. Pulsing \
LDAC low allows
either or both DAC registers to be updated if the in
put register have
new data. This allows simultaneous updating of booth DAC outputs.
\SYNC
Active low control input. This is the frame synchronisation signal for the
input data. When \
SYNC goes low it powers on the SCLK and DIN
buffer and enables the inpu
t shifts registers. Data is transferred in on
the falling edge of the following 16 clocks. If \
SYNC is taken high
before the 16
th
falling edge the rising edge of \
SYNC acts as an
interrupt and the write sequence is ignored by the device.
SCLK Serial Cloc
k input. Data is clocked into the input shift register on the
falling edge of the serial clock input. Data can be transferred at rates up
to 30MHz. The SCLK input buffer is powered down after each write
cycle
DIN Serial Data In. The device has a 16-bit in
put shift register. Data is
clocked into the register on the falling edge of the serial clock input. The
DIN input buffer is powered down after each cycle.
Figure 5 Pin function description
The input shift register is 16 bits wide. Data is loaded into the device as a 16-
bit word under the control of a serial clock input SCLK. The timing diagram for
this operation is shown in Figure 4. The 16-bit word consists of four control bits
followed by 12 bits of DAC data depending on the device type. The first bit
loaded is the MSB (Bit 15) which determines whether the data is for DAC A or
DAC B. Bit 14 determines if the reference input is buffered or unbuffered. Bit
13 and Bit 12 control the operating mode of the DAC.
Figure 6 Input shift register content

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 9/19 Version 3.2.3 - 31/04/09
The low power supply 3V3 fixes the reference voltage of the converter. In
other word With 12 bits corresponds the low power supply 3V3. In the same
time “0” corresponds to 0V and “1” corresponds to the low power supply (i.e 3v3
for 3V3 low power supply).
2.5.
2.5.2.5.
2.5. Interpolation filter
Interpolation filterInterpolation filter
Interpolation filter
As the piezomechanism is characterised by a strong resonant frequency the
generated step from the DA converter output can destroyed the mechanism. A
1
st
order low pass filter with a cut-off frequency of 1.5 kHz is present to
minimise this effect if the resonant frequency is below the resonant frequency
of the mechanism.

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 10/19 Version 3.2.3 - 31/04/09
3.
3.3.
3. OPERATING INSTRUCTIO
OPERATING INSTRUCTIOOPERATING INSTRUCTIO
OPERATING INSTRUCTION FOR THE
N FOR THE N FOR THE
N FOR THE MINIATURE CAU10
MINIATURE CAU10 MINIATURE CAU10
MINIATURE CAU10
DRIVE ELECTRONIC
DRIVE ELECTRONICDRIVE ELECTRONIC
DRIVE ELECTRONIC
3.1.
3.1.3.1.
3.1. General in truction
General in tructionGeneral in truction
General in truction
The linear amplifier allows applying to the actuator a signal comparable to the
order's one with a gain of 45 (see Figure 3).
Input signal order
45
0
Piezo Actuator
Voltage amplifier
offset
+
Command
Figure 3 - Principle of linear voltage amplifier
3.2.
3.2.3.2.
3.2. Voltage control and current limitation
Voltage control and current limitationVoltage control and current limitation
Voltage control and current limitation
If the order signal is below 0 V or above 3.3 V a protective diode and the power
amplifier saturation will clamp the signal so that the voltage applied to the
actuator stays roughly between 5 V and 150 V.
There is some limitation to the constant gain of the amplifier. Indeed when the
variation speed of the input signal (order) increases the current limitation of
the amplifier limits the slew rate of the output voltage. This current limitation
is set to 5 mA for the sourcing current and around 10 mA for the sinking
current.
3.3.
3.3.3.3.
3.3. U ing the pu h
U ing the pu hU ing the pu h
U ing the pu h–
––
–pull mode
pull modepull mode
pull mode
For some piezoelectric devices such as the piezoelectric tilts or XY stages it is
necessary to supply two actuators simultaneously. A zero positioning is achieved
with an electrical centring. Such a configuration could easily be achieved by
using one amplifier according to the figure shown below.

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 11/19 Version 3.2.3 - 31/04/09
Piezo actuator 1
+150V
G
ND
Out 1 or Out 2
45
+
+
-
-
Piezo actuator 2
push
-
pull
cable
b
a
n
a
n
a
p
l
u
g
s
Voltage
amplifier
Figure 4 - Principle of power supply for an actuator centred electrically
To use this optional mode you need to use the Hirose with 5 wires.
Note: the electrical charge seen by the power amplifier is twice the capacitance
of a single actuator so the bandwidth is twice smaller than for a single actuator.
WARNING
In that mode where one of the actuator is constantly under direct voltage,
it is recommended to limit in time the supply of the actuator.

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 12/19 Version 3.2.3 - 31/04/09
4.
4.4.
4. TROUBLE SHOOTING
TROUBLE SHOOTINGTROUBLE SHOOTING
TROUBLE SHOOTING
In the following tables we trace some problems that you can encountered with
some causes and some possible solutions.
P ROBLEMS : N O SIGNAL ON THE HIGH VOLTAGE OUTPUT LINES & ON THE +150V LINE
A CTION P OSSIBLE C AUSES
Check the power supply connection Battery and
its return line GND
Check the OUT1 OUT2 connections and their
return lines GND
Misconnection on the battery connector or DC
Power supply off:
- Verify the connection
- Switch on the Power supply
- The DC/DC converter doesn’t work properly
Misconnection on piezo load connector:
- Verify the connection
- The linear amplifiers don’t work properly:
Output short circuit
P ROBLEMS : N O SIGNAL ON THE HIGH VOLTAGE OUTPUT I . E +5V DC OR NEAR +100V DC - STABLE
A CTION P OSSIBLE C AUSES
Verify the 3v3 power supply and its return line
Verify the timing diagram of the SPI protocol
Misconnection on the battery connector or DC
power supply off:
- Verify the connection
- Switch on the Power supply
The timing diagram is not correct.
- Check by connecting the optional analogue
Input:
- The protocol is not correct
- The DA converter doesn’t work properly. No
signal is sent to the input of the linear
amplifier.
P ROBLEMS : T HE OUTPUT SIGNAL IS NOT THE SENDED SIGNAL BY SPI BUS
A CTION P OSSIBLE C AUSES
Verify the 3v3 power supply and its return line
Verify the timing diagram of the SPI protocol
Misconnection on command connector
The timing diagram is not corrected.
- Check by connecting the optional analogue
Input
- The protocol is not correct
P ROBLEMS : T HE OUTPUT SIGNAL IS SATURED TO 5V OR TO 150V
A CTION P OSSIBLE C AUSES
Verify the 12 bits words The corresponding 12 bits word is below 0.1V or
above 3.3V.

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 13/19 Version 3.2.3 - 31/04/09
The customer is not entitled to modify the electronic board. For any matter or
breakdown suspicion we suggest the customer to contact the local vendor.
The customer is not entitled to modify the power supply or the linear amplifier.
The only manipulations allowed to him are described in the set here above
including the replacement of (the) external fuse(s.) if any. For any other
matter or breakdown suspicion we suggest the customer to contact the local
vendor.
5.
5.5.
5. WARRANTY CONDITIONS
WARRANTY CONDITIONS WARRANTY CONDITIONS
WARRANTY CONDITIONS A
AA
AND EXCEPTIONS
ND EXCEPTIONSND EXCEPTIONS
ND EXCEPTIONS
The equipment is warranted for one year including parts and labour and only
under standard technical conditions as outlined above and expressly mentioned in
the technical data sheet. Repairs will be carried out at CEDRAT
TECHNOLOGIES or through your vendor. Shipping handling and insurance costs
to return a part for repair must be paid by the customer.
Interventions or attempts to service or repair the CAu10 by any
unauthorised persons will invalidate this warranty.
6.
6.6.
6. INSPECTION UPON RECE
INSPECTION UPON RECEINSPECTION UPON RECE
INSPECTION UPON RECEIPT
IPTIPT
IPT
This product has been inspected and shown to operate correctly at the time of
shipment as verified by the Factory Verification Form that accompanies the
power supply
Immediately upon receipt of the product it should be inspected carefully for
any signs of damage that may have occurred during shipment. If any damage is
found a claim should be filed with the carrier.
The package should also be inspected for completeness according to the
enclosed packing list. If an order is incorrect or incomplete contact your
distributor.
CEDRAT TECHNOLOGIES recommends the customer to keep the original
package for any further carriage of the electronic product.
7.
7.7.
7. AFTER
AFTERAFTER
AFTER-
--
-SALES SERVICE
SALES SERVICESALES SERVICE
SALES SERVICE

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 14/19 Version 3.2.3 - 31/04/09
If a device requires service please contact CEDRAT TECHNOLOGIES or your
local vendor. Please include the device model and serial number in all
correspondence with CEDRAT TECHNOLOGIES or your vendor.

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 15/19 Version 3.2.3 - 31/04/09
ANNEX 1 : CAU10 TECH
ANNEX 1 : CAU10 TECHANNEX 1 : CAU10 TECH
ANNEX 1 : CAU10 TECHNICAL DATASHEET
NICAL DATASHEETNICAL DATASHEET
NICAL DATASHEET

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 16/19 Version 3.2.3 - 31/04/09
ANNEX 2 : EFFECT OF
ANNEX 2 : EFFECT OF ANNEX 2 : EFFECT OF
ANNEX 2 : EFFECT OF THE CURRENT LIMITATI
THE CURRENT LIMITATITHE CURRENT LIMITATI
THE CURRENT LIMITATION
ONON
ON
With a linear amplifier the applied voltage to the actuator is directly proportional to
the input signal. The gain of the power amplifier CAu10 is set to 42.
So to obtain the whole stroke of a given actuator one should input a signal varying
from 0V to 3.3V. The applied voltage on the actuator will then vary from 0 to 150V.
There is some limitation to the constant gain of the amplifier. Indeed when the
variation speed of the input signal (order) increases the current limitation of the
amplifier limits the slew rate of the output voltage. The current provided to a piezo
ceramic is depending on its capacitance and on the variation speed of the applied
voltage.
The current for a capacitive load is given by
the following expression:
dt
dv
CI
piezopiezo
×=
The max frequency for a triangle signal is
given by:
piezo
triangle
CV
I
f×∆× =2
lim
max
For a given current limitation the shortest
load time is given by:
lim
I
CV
t
piezo
load
×∆
=
If we consider a sine signal then the
maximal frequency is given by:
π 2
2
lim
maxsin
××∆
×
=
piezo
CV I
f
Figure A 1 - The current limitation limits the voltage slew rate of the piezo

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 17/19 Version 3.2.3 - 31/04/09
Rating of
Rating of Rating of
Rating of the CAu10 board
the CAu10 boardthe CAu10 board
the CAu10 board on piezo actuator erie
on piezo actuator erie on piezo actuator erie
on piezo actuator erie
Considering a scale variation of ∆V = 120V and taking into account the current limitation
of the CAu10 the following table summarises the load time and bandwidth values for
different piezo actuator series :
Electronic serie CAµ10 CA25 CA45 LA75A LA75B LA75C
Current limitation A 0.005 0.025 0.036 0.09 0.36 2.4
Actuator serie Capacitance
µF
APA - µXS 0.022 0.528 0.106 0.073 0.029 0.007 0.001
APA - XXS 0.15 3.600 0.720 0.500 0.200 0.050 0.008
MLA_2*5*10 - APA - XS 0.25 6.00 1.20 0.83 0.33 0.08 0.01
MLA_5*5*20 - APA - S, SM 1.55 37.20 7.44 5.17 2.07 0.52 0.08
APA - M 3.15 75.60 15.12 10.50 4.20 1.05 0.16
APA - MML 10.00 240.00 48.00 33.33 13.33 3.33 0.50
APA - ML 20.00 480.00 96.00 66.67 26.67 6.67 1.00
APA - L 40.00 960.00 192.00 133.33 53.33 13.33 2.00
APA - XL 110.00 2640.00 528.00 366.67 146.67 36.67 5.50
MLA_5*5*10 - PPA10M 0.70 16.80 3.36 2.33 0.93 0.23 0.04
PPA20M 1.40 33.60 6.72 4.67 1.87 0.47 0.07
PPA40M 2.70 64.80 12.96 9.00 3.60 0.90 0.14
PPA40L 13.30 319.20 63.84 44.33 17.73 4.43 0.67
PPA60L 20.00 480.00 96.00 66.67 26.67 6.67 1.00
PPA80L 26.60 638.40 127.68 88.67 35.47 8.87 1.33
PPA40XL 24.00 576.00 115.20 80.00 32.00 8.00 1.20
PPA80XL 48.00 1152.00 230.40 160.00 64.00 16.00 2.40
PPA120XL 72.00 1728.00 345.60 240.00 96.00 24.00 3.60
Electronic serie CAµ10 CA25 CA45 LA75A LA75B LA75C
Current limitation A 0.005 0.025 0.036 0.09 0.36 2.4
Actuator serie Capacitance
µF
APA - µXS 0.022 602.86 3014.30 4340.59 10851 43406 289373
APA - XXS 0.150 88.42 442.10 636.62 1592 6366 42441
MLA_2*5*10 - APA - XS 0.25 53.05 265.26 382.0 955 3820 25465
MLA_5*5*20 - APA - S, SM 1.55 8.56 42.78 61.6 154 616 4107
APA - M 3.15 4.21 21.05 30.3 76 303 2021
APA - MML 10.00 1.33 6.63 9.5 24 95 637
APA - ML 20.00 0.66 3.32 4.8 11.9 48 318
APA - L 40.00 0.33 2.60 2.4 6.0 24 159
APA - XL 110.00 0.12 0.60 0.9 2.2 9 58
MLA_5*5*10 - PPA10M 0.70 18.95 94.74 136.4 341 1364 9095
PPA20M 1.40 9.47 47.37 68.2 171 682 4547
PPA40M 2.70 4.91 24.56 35.4 88 354 2358
PPA40L 13.30 1.00 4.99 7.2 17.9 72 479
PPA60L 20.00 0.66 3.32 4.8 11.9 48 318
PPA80L 26.60 0.50 2.49 3.6 9.0 36 239
PPA40XL 24.00 0.55 2.76 4.0 9.9 40 265
PPA80XL 48.00 0.28 1.38 2.0 5.0 20 133
PPA120XL 72.00 0.18 0.92 1.3 3.3 13 88
Load time @ 120 V (ms)
Bandwidth (sinus) @ -3 dB (Hz)

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 18/19 Version 3.2.3 - 31/04/09
ANNEX 3 : UNDERSTAND
ANNEX 3 : UNDERSTANDANNEX 3 : UNDERSTAND
ANNEX 3 : UNDERSTANDING THE FACTORY VERI
ING THE FACTORY VERIING THE FACTORY VERI
ING THE FACTORY VERIFICATION
FICATION FICATION
FICATION
SHEET
SHEETSHEET
SHEET
Representative load
Verification tests
Representative
load
Verification tests

CAu10 Product and Warranty information
CEDRAT TECHNOLOGIES 19/19 Version 3.2.3 - 31/04/09
ANNEX 4 : TROUBLE SH
ANNEX 4 : TROUBLE SHANNEX 4 : TROUBLE SH
ANNEX 4 : TROUBLE SHOOTING FORM
OOTING FORMOOTING FORM
OOTING FORM
In case of trouble or breakdown with the electronic device this form must be completed by the
customer in order to :
-allow Cedrat Technologies to authorise the product return back to the factory
-help Cedrat Technologies in repairing it.
Product: Please give mention here the references and delivery date
History: Please summarise here every action which has been performed with the device since the
delivery
Problem description: Please describe here the problems faced with the electronics and which are
not described in the paragraph 7
Notations: Please define here the short term used for external devices plugged in the
electronics in order to make the writing of “problem identification” easier
Problem identification: Please summarise and describe here using the “notations” the operation
that could lead to problem identification
Action: Please mention and update here every action undertaken by yourself by Cedrat
Technologies or by your local vendor
Please note that you need to get the authorisation from CEDRAT TECHNOLOGIES
before sending back the hardware.