• 产品
  • 详情
  • 推荐
PICOTEST 信号注入变压器 测试讯号转换器 变压器直销 回路信号测试仪器 Injector J2120A

收藏

¥5000.00

1-4台

¥4900.00

5-9台

¥4800.00

≥10台

产品规格

可售数量: 200台

苏州迪东电子科技有限公司

7年

经营年限

江苏苏州

所在地区

10.0

综合评分

图文详情
产品属性

 

J2120A Line Injector 
1、 10Hz~10MHz可用的频宽
2、 低损失(Insertion loss)设计
3、 5安培的zui大电流
4、 50Vdczui大的输入
5、 可轻易测量电源输入滤波器(Input filter)和PSRR
6、 详细规格
產品说明
While the injection transformer is a very wideband adapter, it is not useful for measuring ripple rejection (PSRR) of a power supply or even an opamp. This is because the attributes that make the injection transformer perform so well also result in a transformer that is intolerant of DC current. Even very small DC currents (5mA or less) can greatly reduce the signal capacity or even totally saturate the transformer. For this reason, the Picotest line injector (J2120A) is another essential test adapter.

The line injector allows the input DC supply voltage to be modulated by the network analyzer source signal, as in the case of a PSRR measurement. The line injector must be capable of a frequency range well below the AC line frequency and at least above the control loop bandwidth of the circuit being tested.

The line injector is only capable of sourcing current, so that the output amplitude can be significantly impacted by the operating current and the total storage capacitance at the load. The network analyzer has a very high selectivity so distortion at the output of the line injector generally does not influence the measurement. Again, this is a small signal injector, so the oscillator signals should be kept as small as possible above the noise floor. As a guide, try to keep the input signal amplitude below 50mVpp (-20dBm). In some cases we want to attenuate the source signal even further, and so we have included the attenuators in the injector kits. Some analyzers, such as the Omicron-Lab-Lab Bode-100 allow shaping the injection amplitude as a function of frequency, which helps optimize the signal level.

Measuring Output Impedance

The line injector can also be used in conjunction with a current probe to measure the input impedance of a power supply. The input impedance of a switching power supply or regulator is negative, which is a stability concern when combined with an EMI filter, making the measurement an important part of the design, analysis and verification process. The current probe must be set for 1A/V or the results need to be scaled accordingly for different settings

品牌 PICOTEST
型号 J2120A
加工定制
类型 信号注入变压器
频率 15Hz ~ 5MHz

店铺

收藏

联系

在线咨询
网站也是有底线的
联系电话
  • 15895520931

  • 0158-95520931

联系时请说明
信息来自搜好货网

PICOTEST 信号注入变压器 测试讯号转换器 变压器直销 回路信号测试仪器 Injector J2120A

¥ 4800.00 ~ ¥ 5000.00

规格
价格/数量
无规格

¥4800.00

200台可售

询价单发送成功~

电话联系
立即询价
发送询价
完成
图形验证码
点击图片刷新验证码