Selection chart of Bipolar power supplies/High Voltage Amplifiers

Fast Frequency response, compact bipolar power supplies and high voltage amplifier are available.

INDEX

Bipolar power supplies, Low Voltage Amplifiers
- Less than 1 kW
- 1 kW or more
High Voltage Amplifiers
High Voltage Pulse Power Supplies
What is a Bipolar Power Supply? (Basic Knowledge)

Bipolar power supplies, Low Voltage Amplifiers

Four-quadrant bipolar power supply which source and sink electric power. Most appropriate for evaluation test such as solar panels devices, equipments driven by battery.

Less than 1 kW

Series		DJOP	DJOPF	DOC	DHOP	DOA	DOKF
Output Power		50 to 60 W	50, 60 W	50, 100 W	225 to 240 W	75 to 300 W	400 W
Frequency bandwidth (-3 dB) * It differs from the model conditions.		DC to 30 kHz	DC to 30 kHz	DC to 10 kHz	DC to 100 kHz	DC to 1 MHz	DC to 120 kHz
Output Voltage	10 V	±10 V	±10 V
	20 V	±20 V	±20 V		±20 V		±20 V
	30 V	±30 V	±30 V
	40 V						±40 V
	45 V				±45 V
	60 V	±60 V	±60 V				±60 V
	75 V					±75 V
	80 V						±80 V
	150 V					±150 V
	500 V			±500 V
	1000 V			±1000 V
Features	Digital Functions		Basic Wave Generated Sequence Measurement Memory				Basic Wave Generated Sequence Measurement Memory Synchronized Operation
	Four-quadrant action	Four-quadrant action	Four-quadrant action	Four-quadrant output (Source and Sink are available)	Four-quadrant action	Four-quadrant action to source and sink current	Four-quadrant action to source and sink current
	DC bias function	DC bias function			DC bias function	DC bias function
	DC or AC meter	DC output meter	DC or AC output meter		DC output meter
	Constant voltage and constant current	Constant voltage and constant current	Constant voltage and constant current	Constant voltage and constant current	Constant voltage and constant current		Constant voltage and constant current
	Complete protective function	Complete protective function	Complete protective function		Complete protective function
Ripple		[CV mode] Less than 0.02% rms [CC mode] Less than 0.2% rms	[CV mode] Less than 0.02% rms [CC mode] Less than 0.2% rms	[CV mode] 0.02% rms [CC mode] 0.2% rms	[CV mode] Less than 0.1% rms [CC mode] Less than 0.4% rms	Less than or equal to 0.02% rms	[CV mode] DOKF20-20: 2 mV Except DOKF20-20: 4 mV (typ.) [CC mode] 3 mA, Typical
Applications	Motor	Various motor tests	Various motor tests		Various motor tests	Evaluation tests of various motors	Various motor tests
	Coil and transformer	Inductive load such as coil and transformer	Inductive load such as coil and transformer		Inductive load such as coil and transformer	Evaluation tests of inductive load such as coil and transformer	To drive inducible load such as coil and transformer
	Capacitor	Capacitive load like capacitor	Capacitive load like capacitor		Capacitive load like capacitor	Evaluation tests of capacitive loads such as capacitors or display panels	Drive capacitive load such as capacitor
	In-vehicle electrical component	Voltage regulation tests of in-vehicle electrical component	Tests of in-vehicle electrical component		Voltage regulation tests of in-vehicle electrical component	Voltage fluctuation tests of electric elements of cars
	Solar panel and batteries	Evaluation test of devices related to solar panel devices	Evaluation test of devices related to solar panel devices		Evaluation test of devices related to solar panel devices	Evaluation tests of devices relative equipment to solar cells/panels	Evaluation of solar cell/panel related equipments such as solar inverters (PV inverters)
	Surface treatment	For surface treatment	For surface treatment		For surface treatment
	Evaluation tests	Simulated battery for evaluation tests of equipments driven by battery.	Simulated battery for evaluation tests of equipments driven by battery.		Simulated battery for evaluation tests of equipments driven by battery.
Series		DJOP	DJOPF	DOC	DHOP	DOA	DOKF

1 kW or more

Series		DOSF	DOEF	DOP	DOPF	DOS
Output Power		0 to 2 kW	0.4 to 1.2 kW	0.15 to 2 kW	0.15 to 2 kW	0.15 to 2 kW
Frequency Bandwidth (-3 dB) * It differs from the model conditions.		DC to 200 kHz	DC to 200 kHz	DC to 30 kHz	DC to 30 kHz	DC to 200 kHz
Output Voltage	5 V			±5 V	±5 V
	6 V			±6 V	±6 V
	10 V			±10 V	±10 V
	20 V	±20 V	±20 V	±20 V	±20 V	±20 V
	25 V	±25 V		±25 V	±25 V	±25 V
	30 V			±30 V	±30 V
	40 V		±40 V
	45 V	±45 V		±45 V	±45 V	±45 V
	60 V	±60 V	±60 V	±60 V	±60 V	±60 V
	70 V			±70 V	±70 V
	80 V			±80 V	±80 V
	120 V			±120 V	±120 V
	150 V			±150 V	±150 V
	200 V			±200 V	±200 V
	300 V			±300 V	±300 V
Features	Digital Functions	Basic Wave Generated Sequence Measurement Memory	Basic Wave Generated Sequence Measurement Memory Synchronized Operation		Basic Wave Generated Sequence Measurement Memory
	DC bias function			DC bias function		DC bias function
	Four-quadrant action		Four-quadrant action to source and sink current	Four-quadrant action	Four-quadrant action	Four-quadrant action
	DC or AC meter			DC output meter		DC output meter
	Constant voltage and constant current	Constant voltage and constant current	Constant voltage and constant current	Constant voltage and constant current		Constant voltage and constant current
	Master/Slave			Master/Slave		Master/Slave
	Complete protective function			Complete protective function
Ripple		0.02% rms	0.02% rms	Less than 0.02% rms	0.02 s% rms	Less than 0.02% rms
Applications	Motor	Various motor tests	Tests of various DC motors	Various motor tests	Motor testing	Various motor tests
	Coil and transformer	Biasing inductive loads (coil, transformer, etc.)	To drive inducible load such as coil and transformer	Inductive load such as coil and transformer	Biasing inductive loads (coil, transformer, etc.)	Inductive load such as coil and transformer
	Capacitor	Driving capacitive load (capacitors and so on)		Capacitive load such as electric double-layer capacitor	Driving capacitive load (capacitors)	Ripple test of capacitors
	In-vehicle electrical component		Voltage fluctuation tests of automotive electrical components	Voltage regulation tests of in-vehicle electrical component		Voltage regulation tests of in-vehicle electrical component
	Solar panel and batteries	Solar inverters (PV inverters), solar panels	Evaluation of solar cell/panel related equipments such as solar inverters (PV inverters)	Evaluation test of solar panel related devices	Solar panels	Evaluation test of solar panel related devices
	Surface treatment	For surface treatment		For surface treatment		For surface treatment
Series		DOSF	DOEF	DOP	DOPF	DOS

High Voltage Amplifiers

Models with the fastest slew rate of 1,200 V/µs or compact modules for built-in use are available. Those series produce high voltage output in sine waves, triangle waves, saw tooth waves, and more.

Series		AP	AS	COR	AMS	AMJ	AMT	AMP	AMPS
Output Power		3 to 10 W	3 to 10 W	20 W	±20 to ±200 W	20 to 40 W	±20 to ±200 W	0.1 to 1.2 kW	0.4 to 1.2 kW
Frequency bandwidth (-3 dB) * It differs from the model conditions.		DC to 2 kHz	DC to 24 kHz	DC to 1 kHz	DC to 30 kHz	DC to 75 kHz	DC to 100 kHz	DC to 60 kHz	DC to 200 kHz
Output Voltage	0.3 kV	±0.3 kV	±0.3 kV
	0.5 kV					±0.5 kV
	0.6 kV	±0.6 kV	±0.6 kV				±0.6 kV	±0.6 kV	±0.6 kV
	1 kV	±1 kV	±1 kV			±1 kV	±1 kV	±1 kV
	1.5 kV	±1.5 kV	±1.5 kV				±1.5 kV
	2 kV					±2 kV		±2 kV	±2 kV
	3 kV	±3 kV	±3 kV				±3 kV
	4 kV					±4 kV
	5 kV				±5 kV		±5 kV	±5 kV	±5 kV
	10 kV			±10 kV	±10 kV		±10 kV	±10 kV	±10 kV
	20 kV							±20 kV	±20 kV
	30 kV							±30 kV	±30 kV
	40 kV							±40 kV
Features	Slew rate		Fast responsivity up to 24 kHz	Fast response of slew rate up to 30 V/µs					Ultra high slew rate up to 1200 V/µs, only ±10 kV output model and ±20 kV output model
	High speed response					High speed response up to 75 kHz	High speed response 360V/µ sec	High speed response of slew rate up to 700 V/µs	High-speed response of frequency bandwidth up to 100 kHz
	Wave form	Desired output waveform reference to input waveform.	Desired output waveform reference to input waveform.		Various types of output wave forms according to the input wave	Various types of output wave forms	Various types of output wave forms according to the input wave
	DC bias function				DC bias function	DC bias function	DC bias function
	DC output voltage monitor				DC output voltage monitor, 3.5-digit digital meter	DC output voltage monitor, 3.5-digit digital meter	DC output voltage monitor, 3.5-digit digital meter
	Other	All-Solid-State	All-Solid-State	Three functions of CC, CV and HV amplifier in one unit				The demand for evaluation of higher voltage solar panel
	Other			Return current terminal is standard and best for corona current control
Ripple		0.025% rms or less	0.025% rms or less	0.1% p-p or less	0.1% p-p or less	Less than 0.1%	0.02% + 1 Vp-p or less	Less than 0.02% + 1 Vp-p	Less than 0.02% + 0.5 Vp-p
Applications	Electro photography process	Electro photography process	Electro photography process	Research and Development of electro photographic process	Electro photography process	Electro photography process	Electro photography process	Electro photography process	Electro photography process
	Corona discharge	Corona discharge	Corona discharge	Experiment of corona discharge	Corona discharge	Corona discharge	Corona discharge	Corona discharge
	Beam deflection	Beam deflection	Beam deflection		Beam deflection	Beam deflection	Beam deflection	Beam deflection	Beam deflection
	Electrorheological fluid	Electrorheological fluid	Electrorheological fluid		Electrorheological fluid	Electrorheological fluid	Electrorheological fluid	Electrorheological fluid
	Electrostatic chuck	Electrostatic chuck	Electrostatic chuck		Electrostatic chuck	Electrostatic chuck	Electrostatic chuck	Electrostatic chuck
	Various Electrostatic tests	Various Electrostatic tests	Various Electrostatic tests		Various Electrostatic tests	Various Electrostatic tests	Various Electrostatic tests	Various Electrostatic tests	Various Electrostatic tests
	Other test	Insulation and breakdown voltage testing	Insulation and breakdown voltage testing	Photosensitive drum testing	Breakdown voltage testing	Breakdown voltage testing	Breakdown voltage testing	Breakdown voltage testing
Series		AP	AS	COR	AMS	AMJ	AMT	AMP	AMPS

High Voltage Pulse Power Supplies

The below pulse power supplies are ideal for ion beam deflection, synchrotron radiation measurement, PMT and MCP.

Series	SK	SKS
0.3 kV	0.3 kV
0.4 kV	0.4 kV
0.5 kV	0.5 kV
1 kV	1 kV
2 kV	2 kV
5 kV	5 kV
10 kV	10 kV	10 kV
Output current	20 mA ave.	10 mA ave.
Pulse reptition frequency, PRF	10 kHz max	50 kHz max
Rise/fall time	15 ns	20 ns

Function Generator

What is a Bipolar Power Supply? (Basic Knowledge)

High Voltage Amplifier

High voltage amplifier converts the input voltage to high voltage waveform as it is as shown in fig. 1. These days the demand of HV amplifier is growing more and more, and now becoming an indispensable tool for research and development, experiments and integrating to a system for such fields as electronics, physics, biochemical and medical industries. With high voltage technologies Matsusada Precision Inc. manufactures various High Voltage amplifiers to meet all requirements from customers.

* We have amplifiers developed specially for electrostatic chuck or PZT. Please ask for details to our sales staff.

This is the image of circuit to amplify input signal. — (fig. 1)

Four-quadrant Output Range

High Voltage amplifier is generally equipped with the "sink" function for output currents that provides constant voltage operation without regard to the type of load whether it is capacitive or conductive. (Fig.2) As it gives fast response, it is an ideal power supply for applications which require AC output.

Matsusada High Voltage amplifiers are all bipolar type and can be operated in a full four-quadrant area. (I, II, III, IV area)

Vomax: Rated output voltage
Iomax: Rated output current

Slew Rate

The responsivity of our high-speed amplifier is determined with slew rate (SR). The step responsivity of our amplifier is as shown in fig. 3.

SR = ΔV/μS

In case of output amplitude is smaller the response time becomes shorter. AMP series reach to greater than SR =700 V/µS at maximum.

This graph explains slew rate. It is defined as the amount of voltage change per unit time for an input signal. — (fig. 3)

Rise Time (step response)

Step response can be indicated with rise time. (fig.4) Usually the rise time of the amplifier of response (= bandwidth) fc (Hz) is given by a formula below.

tr ≒ 0.35/fc.

The fall time tf is equals to tr.

This image explains rise time. — (fig. 4)

Frequency Response

Response of Matsusada amplifiers are described as "frequency bandwidth". When swing the output with sinusoidal waveform with rated resistive load, output swing (amplitude) is reduced as input frequency become faster. Frequency response in the specification is the frequency fc is where output swing is 70% (-3 dB). (fig. 5)
In case clear output waveform is required, please select a High Voltage amplifier which has high enough frequency bandwidth against required frequency. In general three to five times more frequency bandwidth for sinusoidal waveform, and about 10 times more for rectangular waveform, is required. In case of insufficient frequency bandwidth the output swing shall be reduced, and also the phase difference be large, so some solutions, such as monitoring output waveform, shall be required.

* Please avoid continuous inputting of a high-frequency signal which reduces the output frequency of an amplifier. An amplifier will be broken because of increase of internal loss.

This graph explains response speed which is defined in the frequency band. — (fig. 5) Declination of output swing by frequency

Capacitive Load

When a capacitive load is more than 100 pF (including a stray capacitance of output wire), the resonance in the output may occur. In that case, install 100-ohm (@0.1 μF) to 1000-ohm (@1000 pF) of high voltage resistance in the output in series. Please note that the frequency band will be limited as the formula written in the right figure when an amplifier is used with a capacitive load.
In addition, when an amplifier is used for the use such as a corona discharge, the current which is higher than rating will flow and it will affect the amplifier badly. In this case, as well as the time to use an amplifier with a capacitive load, please install the output resistance and limit the current.

* Please avoid continuous inputting of high frequency signal which reduces output frequency of an amplifier. An amplifier will be broken because of increase of internal loss.

This image explains frequency band when a capacitive load is connected.

Important note to utilize the full performance of high-speed High Voltage amplifier

Output cable of High Voltage amplifiers is not shielded. If the output cable has some stray capacity against ground (earth ground or metal objects), output voltage will be sinusoidal or stop waveform and extra current will be drawn. As this current draw parallel to load, the following appearance might be happened.

Slew rate or response frequency drop
The waveform is distorted or changed

A conceptual diagram of leak current of High Voltage amplifier.

When there is output stray capacitance C the leak current by C will be as below.

Solution

Make sure to have proper connection to make stray capacitance of High Voltage cable as low as possible.

Keep the length of output cable as short as possible.
Keep the output cable away from floor, desks, or metal objects.
Have no shielding on the output cable.