TD-19 (30V / 10Amp)
Step-down transformer, 220 V AC to 30 V AC secondary at 10 A, 300 VA, for building a linear stepper supply.
Overview
The TD-19 is a step-down transformer, taking 220 V AC mains and delivering a 30 V AC secondary at up to 10 A, roughly 300 VA - a voltage between the 24 V DEL-2031/DEL-2523 and the 42-45 V TD-16/TD-32 in this range.
On its own it only steps the voltage down - it has no rectifier or filter capacitor, so it can't power a DC stepper drive by itself. Paired with the TLP-04 rectifier and filter card, which is rated for transformer secondaries feeding drives in the 24-48 V class, this becomes a complete linear power supply: the transformer sets the voltage and current capacity, the TLP-04 rectifies it and supplies the bulk capacitance a stepper system draws on during acceleration.
300 VA at 10 A gives useful headroom for a couple of drives, more current than the DEL-series transformers offer but less power than the TD-16/TD-32 pair.
For a lower or higher secondary voltage at a similar current, the DEL-2122 (17.5 V, 8.5 A) and TD-16 (42 V, 12 A) bracket it in this range.
Supplied by Tiny Controls in India.
Specifications
| Secondary voltage | 30 V |
|---|---|
| Secondary current | 10 A |
Questions
Where does this sit relative to your other transformers?
Right in the middle — between the 24V DEL-2031/DEL-2523 and the 42-45V TD-16/TD-32 in this range.
Is 10A enough headroom for a couple of drives?
Yes — 300VA gives useful headroom for a couple of drives, more current than the DEL-series transformers offer, though less power than the TD-16/TD-32 pair.
What if I need a lower or higher voltage at a similar current?
The DEL-2122 (17.5V, 8.5A) covers lower, and the TD-16 (42V, 12A) covers higher.