Injection transformer range

Introduction

When testing the transfer function of a control loop, a ‘disturbance signal’ from which frequency response analysis can be made is ‘injected’ into the loop.

In order to ensure that the test system does not change the transfer function results, it is important that the signal generator providing the disturbance signal is isolated from the circuit being tested.

This isolation can be achieved using a transformer or active isolation circuit that meets thefrequency range and voltage isolation requirements of a specific test environment.

Standard injection transformer

Frequency range: 10Hz to 200kHz with flatness +0dB -3dB

Turns ratio:           6.3 : 1

Size:                      31x92x38mm

Voltage rating:     50V

Connectors           BNC Input Isolated BNC Output

HF injection transformer

Frequency range: 500Hz to 35MHz with flatness +0dB -3dB

Turns ratio ：       2.3 : 1

Size:                      31x92x38mm

Voltage rating:     50V

Connectors           BNC Input  Isolated BNC Output

HV injection transformer

Frequency range: 5Hz to 15MHz with flatness +0dB -3dB

Turns ratio:           2.3 : 1

Size:                      31x111x60mm

Voltage rating:      600V Cat II

Connectors            BNC Input  2 x 4mm safety connector  Output

Low Frequency Injection Module (LFIM) – Opto isolated active circuit

Frequency range: DC to 100kHz with flatness +0dB -3dB

Turns ratio:           3.1 : 1

Size:                     44x110x82mm

Voltage rating:    600V Cat II

Connectors          BNC Input  2 x 4mm safety connector Output

Input power:        12V (Universal power adaptor supplied standard)