Low bａnd corner frequency 達(dá)10Hz,可支持一般離線(xiàn)式電源供應(yīng)器(off-line power supplies)的測(cè)量45MHz的超高頻寬,足以對(duì)應(yīng)目前及未來(lái)的穩(wěn)壓器測(cè)量需求超高頻寬,可達(dá)23 Octave優(yōu)異精確的低失真表現(xiàn)5Ω終端,對(duì)待測(cè)電路的影響降至最小包括衰減功能來(lái)確保小信號(hào)的測(cè)量正確性

詳細(xì)介紹

Low bａnd corner frequency 達(dá)10Hz,可支持一般離線(xiàn)式電源供應(yīng)器(off-line power supplies)的測(cè)量
45MHz的超高頻寬,足以對(duì)應(yīng)目前及未來(lái)的穩(wěn)壓器測(cè)量需求
超高頻寬,可達(dá)23 Octave
優(yōu)異精確的低失真表現(xiàn)
5Ω終端,對(duì)待測(cè)電路的影響降至最小

包括衰減功能來(lái)確保小信號(hào)的測(cè)量正確性

產(chǎn)品說(shuō)明

The injection transformer is presently the prevalent method for connecting the network analyzer to the circuit being tested, and is primarily used for control loop stability measurements. The goal of the transformer is to inject a signal into the control loop being measured, without impacting the performance of the loop. In order to accomplish this to a reasonable degree, The transformer is isolated and therefore is capable of floating on a high voltage, such as a Power Factor Corrector (PFC), which is often close to 400VDC. Measuring voltages that exceed the voltage rating of the FRA inputs require attenuation probes.

The usable bandwidth of an injection transformer is generally significantly greater than the 3dB frequency limits. This is because the transformer itself is outside of the measurement, leading many to incorrectly believe that the transformer is a non-critical element.

The bandwidth of the transformer is strongly related to the terminating impedance. The most network analyzers provide a 50 Ohm oscillator source impedance. Assuming this impedance the optimal termination resistor is 5 Ohms. This significantly attenuates the injection signal, which is generally beneficial, as a common error in Bode measurements is using a signal which is too large, and therefore not a small signal measurement. An added benefit of this low value is that it can generally be left in circuit at all times, simplifying the connection to the network analyzer without appreciably impacting the output voltage of the circuit being tested.

規(guī)格

Performance at -10dBm input level
Characteristic	Rating
DCR
Ratio	1:1
Termination Impedance	5 Ohms
Usable Bandwidth	10Hz - 45MHz (Terminated into 5 Ohms) 60Hz - 45MHz (Terminated into 50 Ohms)
Isolation Voltage	600V
Isolation Capacitance	150pF@1KHz
DC Current	10mA
Temperature Range	0 ~ 50°C
Maximum Altitude	6000 Ft