Intelligent Bipolar Power SupplyPBZ Series

Intelligent power supply providing arbitrary waveform generation and accurate power simulation!

The PBZ is a series of bipolar DC programmable power supplies that can smoothly pass through zero to provide ± voltage and ± current without changing the output terminals. The PBZ is capable of 4-quad-rant operation, meaning that it is capable of both sourcing and sinking power, ideal for driving both inductive and capacitive loads.This power supply comes equipped with a built-in function generator, allowing for easy waveform and sequence generation. The output cur-rent of the PBZ can be expanded among multiple units by using the synchronization feature. The switching + linear design of the PBZ has allowed for a 40% reduction in weight (approx. 22kg) while achieving extremely high-speed operation (CV mode: 100kHz) and low ripple noise.

Features

Waveform Generation

Built-in function generator for customizable waveform generation!

In addition to basic sine, square and triangular waveforms, the PBZ allows the operator to customize up to 16 user-defined waveforms with the internal function generator. Amplitude, frequency, start phase, frequency sweep and square wave duty can be programmed as needed. 16 user-defined waveforms can be freely edited and registered to the PBZ internal memory. The sequence feature (see P6) allows for each step in an individual waveform to be customized in detail for a maximum of 1024 steps among 16 programs. *Waveform editing requires proprietery software (Wavy for PBZ).

3 Basic Waveforms / 16 User-Defined Waveforms (Default Waveforms)

Example Applications Expanded Through Waveform Generation

Sequence Feature

Sequence customization for convenient waveform generation!

The basic sine, triangular and square waveforms (as well as the 16 user-defined waveforms) can be programmed per sequence step, allowing for easy creation of complex sequences. Sequences are composed of up to 1024 steps, which can be allocated among a maximum of 16 programs. The script function allows for multiple programs to be c ombined and executed as needed.As shown on the right, Program 1 uses 8 steps, allow-ing for 1016 steps to be allocated among the remaining 15 programs. (1024 – 8 = 1016 steps)The script function allows the operator to specify the sequence and number of repitions for set programs. A maximum of 50 rows can be assigned to 1 script for both CV and CC mode.

Step and Program Settings

Step and Program Settings

Example of Script

Example of Script

Synchronized Operation

Seamless sequence execution with no deviation between synchronized units!

This feature allows the user to synchronize the output of multiple PBZ units when executing a sequence, preventing any deviations from occuring even during a long sequence. *Excluding start up delay of up to 1 μs

car navigation system

Multichannel voltage variation test example

Power for automotive vehicles is supplied by the battery, but the power is activated by multiple internal electronic components (+B→ACC→IG) turning ON/OFF in a specific order. There are an extremely large number of electronic components that can cause instability within the automobile, including engine start-up and electrical circuit chat-tering. Therefore, problems caused by this instability such as power interruptions and fluctuations can be planned for and avoided by performing rigorous voltage variation tests on all channels for automotive electronic components.

Example of using synchronized operation
Example of using synchronized operation

Car navigation system

  • CH1: +B LINE
    Power continuously supplied by the battery is distributed to components such as clocks and memory devices.
  • CH2: ACC LINE
    The power supply for car navigation systems are turned ON via the ignition switch’s ACC contact. After the switch is acti-vated, real-time navigation, radio, etc. become possible.
  • CH3: ILL LINE
    +Backup power supply line (ILL) that directly pulls up +B, IG, and ACC.

Car navigation system

Parallel Operation

Easily increase capacity!

This feature allows the user to increase the output current by connecting multiple units in parallel. This setup can easily be completed with 2 identical models and the optional parallel operation kit. For systems that require more than 3 units, please refer to the PBZ-SR Series. For systems that require more than 6 units, please contact your local Kikusui distributor. (Standard models)

Parallel operation kit (option)

The optional accessory kit for connecting 2 PBZ units in parallel (same model). Please select the following kit that best fits your testing requirements.
*Bracket is not included for PK02-PBZ and PK03-PBZ

PK01-PBZ

For Desktop use
Contents: Bracket, Insulating sheet, OUTPUT terminal connection bar, Parallel output terminal cover, Bracket screws (M4-8L), Spacer, Load wire screw (M5-10L), Parallel operation signal cable

PK02-PBZ (For EIA inch size)

For Rack-mounted system
Contents: Insulating sheet, OUTPUT terminal connection bar, Load wire screw (M5-10L), Parallel operation signal cable

PK03-PBZ (For JIS metric size)

For Rack-mounted system
Contents: Insulating sheet, OUTPUT terminal connection bar, Load wire screw (M5-10L), Parallel operation signal cable

Unipolar Mode

Full operation in quadrant 2

The unipolar function is unique to the PBZ. “Unipolar mode” allows the PBZ to apply current in both directions (source and sink) while current flows in a single direction. As seen in the diagram below, this feature allows the user full operation in the 1st and 2nd quadrants. Unipolar mode allows the user to bypass power restrictions (PBZ20-20: 100W, PBZ40-10: 180W) present in the 2nd and 4th quadrants when in bipolar mode.

Unipolar Mode

High-Speed Response / Low Ripple Noise

High-Speed Response: 100kHz*1/150kHz*2 (CV mode)
Rise time example when 3.5 μs response is set
Rise time example when 3.5 μs response is set

100 kHz/150 kHz frequency specifications (CV). The excellent waveform quality combined with the ultra-fast rise/fall time of 3.5 μs allow the PBZ to reproduce a wide variety of waveforms of the highest quality.

*1 100 kHz for standard models (PBZ20-20, 40-10, 60-6.7, 80-5)
*2 150kHz for “A” models (PBZ20-20A)

Low Ripple Noise: Excellent waveform quality
Sample of actual 0.1 V step waveform Ripple 2 mVrms, noise 20 mVp-p(PBZ20-20)
Sample of actual 0.1 V step waveform Ripple 2 mVrms, noise 20 mVp-p (PBZ20-20)

The excellent waveform quality of the PBZ minimizes noise effects on simulations and pulse-driven devices.

* PBZ40-10: Ripple 4 mVrms, noise 20 mVp-p
PBZ60-6.7: Ripple 4 mVrms, noise 30 mVp-p
PBZ80-5: Ripple 4 mVrms, noise 30 mVp-p


Four quadrant operation

4-quadrant operation allows for both the sourcing and sinking of power, ideal for driving both inductive and capacitive loads. Also, the PBZ SR/BP is equipped with LAN, USB, GPIB and RS232C standard digital interfaces.

Four quadrant (bipolar) operation digram
Four quadrant (bipolar) operation digram

40% lighter than previous models

The switching + linear design of the PBZ has allowed for a 40% reduction in weight (approx. 22kg) resulting in the improved accessibility and portability of bench-top test systems.

Expanded measurement

Built-in measurement features allow for easy testing without the need for multimeters and other measurement devices. Furthermore, the measurement time TRIG signal allows the operator to program measurement start time and measurement delay time.

Setting item
Voltage measurementDCMeasurement range (resolution)120% of rating (0.001V)
Accuracy *1±(0.05 % of reading + 0.05% of rating)
ACMeasurement range (resolution)120% of rating/CF (0.001 V )
DC+ACMeasurement range (resolution)120% of rating (0.001 V )
AC and DC+ACAccuracy *1 *2±(0.5% of reading + 0.1% of rating) (5Hz to 10kHz)
±(1% of reading + 0.2% of rating) (10Hz to 50kHz)
±(2% of reading + 0.2% of rating) (50Hz to 100kHz)
PEAKMeasurement range (resolution)120% of rating (0.01V )
PEAKAccuracy *1 *3±(0.5% of rating)
Current measurementDCMeasurement range120% of rating (0.001A )
Accuracy *1±(0.3% of reading + 0.1% of rating)
ACMeasurement range (resolution)120% of rating/CF (0.001A)
DC+ACMeasurement range (resolution)120% of rating (0.001A)
AC and DC+ACAccuracy *1 *2±(3% of reading + 0.1% of rating) (5Hz to 10kHz)
±(10% of reading + 1% of rating) (10Hz to 100kHz)
PEAKMeasurement range (resolution)120% of rating (0.01A)
PEAKAccuracy *1 *3±(0.5% of rating)
Measurement time100μs to 3600s

*1 At ambient temperature of 18 °C to 28 °C
*2 When the input signal is a sine wave with a crest factor of 3 or less within the prescribed frequency range and the measurement time is no more than 10 times the period of the input signal

*3 Peak value of a 1kHz sine wave

Memory functions

Preset memory

Stores setting conditions most often used. Three memory slots are available for CV mode and CC mode. Settings stored are limited to DC signal and AC signal.

Setup memory

This can be used as general memory storing all basic settings. Up to 10 memories can be set, regardless of mode.

CC/CV selection feature

Select CV mode when using constant-voltage, and CC when using constant-current. The voltage and current uppower/lower limits utilize a “V” and “I” limit function.

Response switching

Response speeds can be switched in both CV and CC mode. The output voltage and current rise/fall time will be effected by the response settings. (Response time setting indicates rise/fall time.)

Setting descriptionCV modeCC mode
Voltage responseCurrent response
PBZ20-20PBZ40-10PBZ60-6.7PBZ80-5
選択肢3.5μs35μs70μs35μs35μs
10μs100μs100μs100μs100μs
35μs350μs350μs350μs350μs
100μs1ms1ms1ms1ms
Factory default setting3.5μs35μs70μs35μs35μs

Protections (overvoltage, overcurrent, V-I LIMIT, overheating)

Overvoltage and overcurrent protection

This protection activates when the output voltage/current exceeds theprotective trip points. The protective trip points can be set seperately in both positive (+) and negative (-) polarities. The following three options can be selected when a protection is activated.

  • OUTPUT-OFF: Output is turned OFF.
  • PPOWER-OFF: Output and POWER switch are turned OFF.

Protections (OVP/OCP)

  • V/I-LIMIT
    Prevents voltage and current exceeding the protection trip points. (Output is not turned OFF.) The V-I/LIMIT function allows the unit to automatically switch from CV mode to I-LIMIT and from CC mode to V-LIMIT. This also allows the unit to automatically switch from CV mode to CC mode, and from CC mode to CV mode.

Protections (V-LIMIT/I-LIMIT)

Overheating protection

This protection is activated when the PBZ temperature reaches abnormally high levels. This protection protects the product from test environments that exceed the ambient temperature, or when sufficient ventilation has not been provided for the intake and exhaust ports.

Soft start and soft stop function

The soft start feature allows the user to gradually increase the output to a given value when turned ON. With soft stop, the user can gradually decrease the output from a given value to 0 when turned OFF. Soft start and stop times can only be set for DC settings. If the OUTPUT key is pressed while soft start or soft stop is in progress, the operation will be cancelled and output turned OFF.

Soft start and soft stop function

Fine settings function

Fine adjustments (increase, decrease) can be made to the DC setting value.

Input range
  • PBZ20-20A/PBZ20-20
    CV: DC setting value ±1.0000V, resolution 0.0001V
    CC: DC setting value ±1.0000A, resolution 0.0001A
  • PBZ40-10
    CV: DC setting value ±2.0000V, resolution 0.0001V
    CC: DC setting value ±0.5000A, resolution 0.0001A
  • PBZ60-6.7
    CV: DC setting value ±3.0000V, resolution 0.0002V
    CC: DC setting value ±0.3350A, resolution 0.0001A
  • PBZ80-5
    CV: DC setting value ±4.0000V, resolution 0.0002V
    CC: DC setting value ±0.2500A, resolution 0.0001A

Fine settings function

Key lock

3 levels of key lock are available.

  • Disable all key operations other than OUTPUT, RECALL, and A,B,C memory functions.
  • Disable all key operations other than OUTPUT.
  • Disable all key operations. (excluding KEY LOCK (SHIFT + LOCAL) KEY)

Remote sensing function

Remote sensing function stabilizes the load terminal output voltage by compensating for voltage drops caused by resistance in the load wires. This function can be used in CV mode with one-way compensation of up to approx. 0.5 V. Please make sure to select load wires with sufficient current capacity so that load wire voltage drop does not exceed the voltage compensation.

Output voltage/current monitor

  • Voltage monitor
    Rear panel (J1 connector)
    0 to ±2V from 0V to ± rated voltage
  • Current monitor
    Front panel (BNC terminal)
    0 to ±2V from 0A to ± rated current
    Frequency characteristics DC to 20kHz (-3dB)
    Rear panel (J1 connector)
    0 to ±2V from 0A to ± rated current

External control

  • External output ON/OFF
  • Shutdown

Status signal output

CV, CC, OUTPUT, and ALARM are output.

External signal input (external voltage control)

The PBZ series is compatible with two types of input signals.

  • The DC signal from the internal signal source can be controlled via external voltage at the rear panel (J1 connector) from DC control signal 0 to approx. ±10 V.

External signal input (external voltage control)

  • Front panel EXT SIG IN (BNC terminal) input signal.
    Composed of a bipolar amplifier using EXT SIG IN (BNC terminal) as the input signal. The amplif ier gain, polar it y (inver ted, non – inver ted) and offset can be set with a maximum input voltage of ±12 Vpeak, maximum input impedance of 10 kΩ, and a common terminal connected to OUTPUT terminal COM.

External signal input (external resistance control)

DC signal of the internal signal source can be controlled using an external variable resistor to change the standard voltage and voltage ratio. With CV and CC mode, the operator can control both voltage and current, respectively. The output is the sum of the external resistor setting, DC panel setting, and remote controller setting.

External signal input (external resistance control)

Temperature-sensitive fan motor

Internal temperature is detected and maintained with an internal fan cooling system.

Interface

USB, GPIB and RS232C standard digital interface. For LAN (option), See here.

PBZ20-20A: Peak Current Output (6x Rating)

Inrush current output up to 6 times the rating! (CV mode)

The PBZ20-20A is capable of generating a short-term peak current up to 6 times the rating when current response is set to 1ms in CV mode.Other response settings will activate the current limit and allow the operator to safely use the device without 6x peak current output. When current response is set to 1ms, the PBZ20-20A automatically decreases response speed and allows for peak current ouput while the current limit is deactivated. This means that the current function will be active at all times when short-term peak current is not output and will have no effect on current response in CC mode. Short-term peak current output is available in both bipolar and unipolar mode.

Recommended Peak Current Duration and Range (Protection)

We recommend a maximum peak current output of up to 6 times the rating (5 times depending on output voltage) within a duration of 10ms (blue area on left). A minimum interval of at least 1 second is required between peak currents, as shorter intervals can cause hardware malfunction. The figure on the left shows the peak and rms current limits when the output is shorted.

Recommended Peak Current Duration and Range

  • In the peak limit area, peak current is capped at 105% of 6x the rating and can be retained for at least 10 ms.
  • There are cases where normal waveforms cannot be generated within the peak limit area. Current limits will still be active ensuring the safety of the operator.
  • In the rms limit area, the peak current is limited by the rms value. The current will decrease down to the rated current according to the duration settings.
  • When sinking power in quadrant 2 and 4, power will be limited after 10 ms and the regular current limit will be activated.

Maximum Peak Current and Terminal Voltage Output

Output terminal voltage

Power variation test
Power variation test

PBZ SR Series

The PBZ SR series is a series of high-power bipolar DC stabilized power supplies. Based on the PBZ Intelligent Bipolar power supply series, this model supports large currents (up to ±100 A) and is assembled with exclusive rack parts (Smart Rack). 4-quadrant oper ation allows power to be supplied (source) or absorbed (sink), making this series suitable for driving inductive loads or capacitive loads. Also, LAN, USB, GPIB, and RS232C are provided (standard) as communication interfaces.

PBZ SR Series Features
Smart rack package that is safe, easy to use, and incorporates know-how in many areas

PBZ BP Series

The PBZ BP series is a series of high-power bipolar DC stabilized power supplies. Based on the PBZ Intelligent Bipolar power supply series, this model supports large currents (up to ±200 A) and is assembled with rack system (bipolar pack). 4-quadrant operation allows power to be supplied (source) or absorbed (sink), making this series suitable for driving inductive loads or capacitive loads. Also, LAN, USB, GPIB, and RS232C are provided (standard) as communication interfaces.

PBZ BP Series Features
Bipolar packs are safe, easy to use, and incorporate know-how in many areas.

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