4520A 精密功率放大器

主要特点

频率带宽: DC∼20kHz
高输出电压 : ±200V
直流（CC/CV）、交流（CC/CV）四种模式 *
* CC：恒电流、CV：恒电压
两台串联使用输出电压可以增大到两倍。
将4520（2kVA）与功率增强器4521（2kVA）连接，可以使功率提高到zui大10kVA。 
装备遥控端子
补偿输出电缆下的电压下降。
也适用于连微小电压下降也不能忽视的精密要求。
Vcc控制
控制内部的直流电源电压（Vcc），提高电源的使用效率，始终确保大电流的输出。
 

型号

概要

4502

250VA、DC∼20kHz ±200V 2.1Arms

4505

500VA、DC∼20kHz ±200V 4.2Arms

4510

1kVA、DC∼20kHz ±200V 8.3Arms

4520A

2kVA、DC∼20kHz ±200V 16.7Arms

4521

4520A用增强器 ±200V 16.7Arms、

Model

4502

4505

4510

4520A

Rated output power

250VA

500VA

1kVA

2kVA

Maximum output power with
respect to products*1

313VA

625VA

1.25kVA

2.5kVA

Rated output

DC mode

± 1.9A

± 3.8A

± 7.5A

± 15.0A

current

AC mode(rms)*2

2.1Arms

4.2Arms

8.3Arms

16.7Arms

Peak current

2.5 X rated value (rms)

Rated output voltage

120Vrms (± 170V) sinewave

Maximum output voltage

141Vrms (± 200V) sinewave

Gain

CV

100V/V

CC

1.5A/V

3A/V

6A/V

12A/V

Gain stability

± 100ppm (typ.), ± 100ppm/8h (typ.) (CV, DC to 1kHz)

Output mode

CV, CC, DC and AC

Load regulation 
(DC mode)

CV mode : Within ± 0.1% (DC to 1kHz), ± 2% max. (1kHz to 20kHz)
CC mode : Within ± 2% (DC to 1kHz), ± 20% max. (1kHz to 20kHz)

Line regulation 
(DC mode)

CV mode : Within ± 0.1% (DC to 1kHz), ± 1% max. (1kHz to 20kHz)

Frequency response

+0.2, -0.5dB : DC to 5kHz (45Hz to 5kHz for AC mode), 
+0, -3dB : 5kHz to 20kHz

Harmonic distortion 
(DC mode)

CV mode : 0.05% or less (10Hz to 1kHz), 1% or less (10kHz), 2.5% or less (20kHz)
CC mode : 0.5% or less (10Hz to 1kHz), 2.5% or less (20kHz)

Output offset voltage/current

Adjustable to zero

Remote sensing

Possible in the CV and DC mode (DC to 1kHz)

Output type

Balanced , single-ended possibly, isolated between input and output

Power requirements

1φ 100V ± 10%
(120, 200, 220 or 240V is available as option.)
48Hz to 62Hz

1φ 200V ± 10%
(220 or 240V is available as option.)
48Hz to 62Hz

Dimensions(mm)

430(W) X 176(H) X 598(D)

430(W) X 265(H) X 598(D)

430(W) X 353.5(H) X 600(D)

430(W) X 442.5(H) X 600(D)

Weight

approx. 27kg

approx. 40kg

approx. 70kg

approx. 93kg

Remarks

*1 with respect to a capacitor-input rectifier circuit having a crest factor (I peak/I rms) of 2, in the CV mode
*2 rms value for a sinewave current (at the rated output voltage, with Vcc=100% in AUTO mode)