Information about Signal Transformers

Signal transformers transfer information from one circuit to another by electromagnetic induction. They are used to increase or decrease the voltage from one side of a power transformer to the other. The turn ratio or number of windings on the primary and secondary sides of a signal transformer determines the change in voltage. Devices can have a center tap in the primary side, the secondary side, or both the primary and secondary sides. Products without center taps are also available. Signal transformers are used in applications ranging from audio signal transfers to very high frequency (VHF) data transfers. They often have isolated windings and are used in low-power circuits for impedance matching to achieve maximum power transfer.

Products & Services Related to Signal Transformers

Audio Transformers

Audio transformers are involved in the transmission of voice or sound signals. They often require wide frequency bandwidth with low distortion and noise suppression.

Current Sense Transformers

Current sense transformers are used to detect and measure current. There are two basic types of products: switch-mode transformers for power conversion applications, and precision-measurement transformers for instrumentation applications.

Gate Drive Transformers

Gate drive transformers are used to drive high-speed switching devices such as field effect transistors (FET) and insulated gate bipolar transistors (IGBT). They are used in applications such as switching power supplies.

RF Transformers

RF transformers transfer energy from one circuit to another by electromagnetic induction. Typically, they are used to increase or decrease voltage as it passes from one side through the other.

Switch Mode Transformers

Switch mode transformers (switching transformers) are used mainly in switching power supplies and DC-DC converters. They provide a storage element for transferring energy from input to output in discrete packets as required in switching power supplies, regulators and converters.

Telecom Transformers

Telecom transformers are used in applications which require high bandwidths and fast switching speeds. They isolate the signal between primary and secondary grounds. This product area includes DSL, xDSL, T1, E1, ISDN, LAN, WAN, Ethernet, ATM and modem transformers.