TEKBOX TBJT01 Injection Transformer Installation Guide

June 10, 2024
TEKBOX

TEKBOX TBJT01 Injection Transformer Installation Guide
TEKBOX TBJT01 Injection Transformer

Introduction

The TBJT01 is a wideband injection transformer for control loop stability measurements. It provides galvanic isolation between the swept signal source and the control loop. The injection transformer is internally terminated with a 5 Ohm resistor and protected with a 100 mA fuse. The usable frequency range is 10 Hz to 45 MHz.

Picture 1: TBJT01 injection transformer
injection transformer 

Specification

  • Compliance: RoHS
  • Termination resistor: 5 Ω
  • Fuse: 100 mA (Littlefuse 0451.100MRL); secondary (output) side
  • Turns ratio: 1:1
  • Characterized freq. range: 1 Hz to 100 MHz
  • Usable frequency range: 10 Hz – 45 MHz
  • 3 dB frequency range: 15 Hz – 9 MHz typ.
  • Insertion loss (S21): 15.5 dB typ.
  • Capacitance: 90 pF @ 1 Khz; primary to secondary winding
  • DC saturation current: 12 mA
  • Max. voltage rating: 600V CAT II; primary to secondary winding
  • Input connector: 50 Ω BNC female,
  • Output connector: 4 mm safety banana jacks, 20 mm spacing
  • Operating temp. range: 0°C – 60°C
  • Enclosure dimensions: 70 mm x 60 mm x 140 mm
  • Weight: 250 g

Frequency response

Figure 1: typical insertion loss
typical insertion loss 

Application

The control loop is commonly broken at the point between the amplifier output and the input of the feedback network:
Application

The isolation transformer is inserted into the control loop and connected to the BodeAnalyzer:
Application

Ordering Information

Part Number Description
TBJT01 10 Hz – 45 MHz injection transformer

History

Version Date Author Changes
V 1.0 0 6.2.2023 Mayerhofer Creation

www.tekbox.com
TekBox Digital Solutions Vietnam Pte. Ltd.
Factory 4, F4, Lot I-3B-1, Saigon Hi-Tech Park, Tan Phu Ward, District 9, Ho Chi Minh City, Vietnam

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References

Read User Manual Online (PDF format)

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Download This Manual (PDF format)

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