Accel Instruments TS200 User Manual

Modulated power supply
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User's Manual
TS200
Modulated Power Supply
Battery Simulator/Emulation
Waveform Amplifier
Power/Current Amplifier
PSRR/CMRR Measurement
Voltage Supply Transient Measurement
Accel Instruments
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Summary of Contents for Accel Instruments TS200

  • Page 1 Accel Instruments User’s Manual TS200 Modulated Power Supply Battery Simulator/Emulation Waveform Amplifier Power/Current Amplifier PSRR/CMRR Measurement Voltage Supply Transient Measurement...
  • Page 2: Warranty Information

    If the device is defective within the warranty period, Accel Instrument will either repair or replace the product. Warranty is voided if the device is opened by anyone other than Accel Instruments. Warranty Limitations This warranty does not apply to normal wearing or misuse of the product or part.
  • Page 3: Safety Precautions

    0C to +40C. While operating, the device generates heat. The TS200 must be placed on a location with enough space all around it. There must be sufficient space around the heatsink in the rear to allow cooling.
  • Page 4: Table Of Contents

    Advance Operation …………………….…………...…9 Waveform Amplifier…………………….…………..…9 Battery Simulator…………………….……………..…9 LDO PSRR Measurement…………………….…..…..…10 LDO PSRR Measurement with Oscilloscope………….…11 Amplifier PSRR Measurement……………………..…12 Amplifier CMRR Measurement……………………..…14 Line Transient Measurement…………………….…..…15 Power Supply Noise Injector……………………..…..…16 Chapter 4 Specifications …………………….…………………..…17 Electrical Specifications…………………….….……...…17 General Specifications…………………….…………...…17 TS200 Options…………………………….…………...…18 Typical Performance...…………………….…………...…19...
  • Page 5: Overview

    It can output DC or AC voltage or both. For example, it can output a 3.3V DC voltage with a 300mVpp AC sinewave riding on top of it. The TS200 features a modulation input to modulate the output to produce any desired waveform.
  • Page 6: Basic Operation

    Front Panel Connect AC Power Connect the AC power cord (included) to the TS200 first. Then plug the AC power cord to the wall outlet. The TS200 input is universal and can accept 100V to 230V, 50Hz and 60Hz, line voltage.
  • Page 7: Enable/Disable The Output

    MODULATION input will increase the output voltage. For example, while the TS200 is set to DC-couple, a +1V applied to MODULATION input will increase the TS200 output voltage by +1V for unity gain version or +10V for 20dB gain version.
  • Page 8: Ac/Dc Couple

    The modulation input can be AC or DC coupled. Remember the output voltage is the superimposed of OFFSET voltage and MODULATION voltage. Power Amplifier The TS200 can be used as a current or power amplifier. The modulation input serves as amplifier input. The TS200 offers 0dB and 20dB gain options. Remote Control The MODULATION input can serve as a remote voltage setting.
  • Page 9: Advance Operation

    If the B-version of the TS200 is used, the gain is 20dB. Since the function generator’s output voltage is amplified by a factor of 10. If the TS200 is set to DC-couple, both the DC voltage and AC signal are amplified by a factor of 10.
  • Page 10: Ldo Psrr Measurement

    (DUT) is heavily loaded. Because most network analyzer cannot drive a heavy load, the TS200 modulated power supply is very useful for PSRR measurement for such devices as LDOs (low dropout regulators) and power amplifiers.
  • Page 11: Ldo Psrr Measurement With Oscilloscope

    CH2 probe is connected to the LDO output near the capacitor. 1x probe is recommended due high oscilloscope noise floor. Connect a function generator to the TS200 Modulation input. Set the function generator output to 200mVpp sinewave or 20mV if B-version is used. Set the frequency to the frequency of interest (i.e.
  • Page 12: Amplifier Psrr Measurement

    Divide CH2 by CH1 is the PSRR. One can use the below equation for PSRR calculation in dB. PSRR = 20log(CH2/CH1) If PSRR is better than 40dB, it is recommended to increase the TS200 output ripple voltage to 500mVpp due to oscilloscope has lower sensitivity than network analyzer.
  • Page 13 Source Output Input Network TS200 Ananyzer Load Source Output Input Network TS200 Ananyzer Load Figure 6. PSRR measurement setup for amplifier. (a) Calibration setup, (b) PSRR setup. As shown in Figure 6, the amplifier input is grounded, either AC or DC ground, for PSRR measurement.
  • Page 14: Amplifier Cmrr Measurement

    VCC). Typically for CMRR measurement, the supply ripple amplitude is 200mVpp. First the network analyzer and the TS200 need to be calibrated. Figure 7a shows the calibration setup. The network analyzer input-A and input-B are connected together at one point on the DUT board near the amplifier input. Set the network analyzer to calibration mode and sweep over the frequency range (i.e.
  • Page 15: Line Transient Measurement

    Mod input of TS200 and the TS200 output is connected to the device under test. Typically the TS200 is set to DC- couple. Set the function generator’s pulse high and low voltages generate the transient step.
  • Page 16: Power Supply Noise Injector

    In some applications, the device under test may be sensitive to power supply noise. For example, VCO (voltage controlled oscillator) phase noise may be degraded with excessive supply noise. The TS200 can be used to aid supply noise sensitive circuit testing.
  • Page 17: Specifications

    Chapter 4: Specifications Electrical Specifications Parameter Condition/Note MIN TYP MAX UNIT Output Voltage Range TS200-0 TS200-1 TS200-2 TS200-3 TS200-4 TS200-5 Continues Output Current See Typical Performance Curves Modulation Input Voltage Range Modulation Gain Non-inverted A-version B-version Min Modulation Frequency -3dB, no load...
  • Page 18: Ts200 Options

    TS200 Options Options Output Modulation Output Voltage Gain (V/V) Current Range TS200-0A -10V to +10V See Typical Performance TS200-0B -10V to +10V Curves TS200-1A -20V to +20V TS200-1B -20V to +20V TS200-2A -20V to +45V TS200-2A -20V to +45V TS200-3A...
  • Page 19: Typical Performance

    Typical Performance...
  • Page 20 Typical Performance...
  • Page 21 Accel Instrumentsl Email: info@accelinstruments.com Website: www.accelinstruments.com...

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