Related Manuals for PiezoDrive TD250
Summary of Contents for PiezoDrive TD250
- Page 1 TD250 – 6 Channel 250V Amplifier Manual and Specifications PiezoDrive Pty. Ltd. www.piezodrive.com...
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Page 2: Table Of Contents
Contents Introduction ..........................3 Warnings / Notes ........................3 Specifications ..........................4 Channel Configuration....................... 5 Bridged Load Configuration ....................... 6 Power Bandwidth ........................8 Small Signal Frequency Response .................... 10 Noise ............................11 Overload Protection ........................ 11 10 Breakout Box / Cables ......................12 11 Enclosure .......................... -
Page 3: Introduction
Introduction The TD250 is an ultra-low noise, six-channel voltage amplifier with a bipolar 250V output range. The six channels can be driven independently, or configured as three channels with non-inverting and inverting outputs, which are ideal for driving piezoelectric tube scanners. The three-channel configuration can also be used to obtain +/-500V with a bridged load. -
Page 4: Specifications
Specifications Electrical Output Voltage Range ±250V RMS Current 22 mA per channel Peak Current 50 mA per channel Gain 25 V/V Slew Rate 30 V/us Signal Bandwidth 50 kHz Power Bandwidth 20 kHz (400 Vp-p) Max Power 25 W Noise 50uV RMS (100nF Load) Protection Over-current protection Input Impedance 100 kΩ... -
Page 5: Channel Configuration
Channel Configuration The standard configuration of the TD250 is six independent non-inverting channels, as shown below. However, the outputs can also be configured as non-inverting and inverting pairs for driving piezoelectric tubes and bridged loads, the order code for this configuration is TD250-INV. -
Page 6: Bridged Load Configuration
Driving Piezoelectric Tube Scanners The voltage range, noise, and bandwidth of the TD250 have been optimized for driving piezoelectric tube scanners, for example the TB6009. Although many configurations are possible, the driven internal electrode configuration shown below is simple and provides the maximum X, Y and Z travel range. - Page 7 Bridged Load Configuration To obtain an output voltage range of +/-500V, the TD250-INV can used with a bridged load, as illustrated below. Out1 Piezo 1 Out2 Out3 Piezo 2 Out4 Out5 Piezo 3 Out6 Figure 2. Bridged configuration using TD250-INV In the bridged configuration, the power bandwidth can be assessed by using the full peak-to-peak load voltage in the calculator, or by doubling the effective capacitance.
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Page 8: Power Bandwidth
, the maximum frequency is therefore �� = �� /�� ����. However, the ���� ���� �� �� TD250 is protected by both peak and average current limits. The average current �� is defined as ����+ the average positive or negative current. For example, for a sine-wave �� ��... - Page 9 In the above table, the frequencies limited by slew-rate are marked in green while the frequencies limited by signal bandwidth are marked in blue. The slew-rate is approximately 30 V/uS which implies a maximum frequency of 30 × 10 ������ ��...
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Page 10: Small Signal Frequency Response
Small Signal Frequency Response 1 uF 300 nF 100 nF 30 nF 10 nF 3 nF 3 uF -100 Frequency (Hz) Figure 4. Small signal frequency response. Load Cap. Bandwidth No Load 100 kHz 3 nF 39 kHz 10 nF 14 kHz 30 nF 5.1 kHz... -
Page 11: Noise
Noise The output noise contains a low frequency component (0.03 Hz to 20 Hz) that is independent of the load capacitance; and a high frequency component (20 Hz to 1 MHz) that is inversely related to the load capacitance. Many manufacturers quote only the AC noise measured in the 20 Hz to 100 kHz range, which is usually a gross underestimate. -
Page 12: Breakout Box / Cables
(Amphenol 20020004-D081B01LF). The breakout box connects to the amplifier via an included 75cm male-male 9-Pin D-Sub cable. Order Code: TD250-Breakout Figure 6. TD250 breakout box Figure 7. Plug-in screw terminal connector A number of 300 V D-Sub cables are available for the amplifier. All are supplied with at least one 9- Pin D-Sub connector for connecting to the amplifier. -
Page 13: Enclosure
12 Enclosure The TD250 enclosure has a side air intake and rear exhaust. These vents should not be obstructed. 64 mm 275 mm 141 mm 13 Warranty PiezoDrive amplifiers are guaranteed for a period of 3 months. The warranty does not cover damage due to...