Tag: PCB testing

Famiglia di curve del tempo di accensione del LED in funzione della corrente I_SENSE per cinque regolazioni di P_SENS, con P_GAIN mantenuto a circa 500 ohm.

GX-TXT-v3: HOLD Node Dynamics and LED On-Time

Written by giux | Published on Aug 23, 2026 | No comments

GX-TXT-v3 HOLD-node dynamics: burst charging, exponential discharge, LED on-time and sensitivity characterization with GNU Octave.

#2N3904 #analog electronics #BAT54 #capacitor discharge #circuit analysis #circuit measurement #experimental electronics #GX-TXT #GX-TXT V3 #HOLD circuit #HOLD node #infrared remote control #IR receiver #IR Remote Control Tester #LED on time #LTspice #PCB testing #RC time constant #SPICE simulation #transistor circuit

Banco di misura della GX-TXT-v3 con fotodiodo virtuale, oscilloscopio Rigol e multimetro OWON durante la caratterizzazione di POT_GAIN, POT_SENS e della tensione HOLD.

GX-TXT-v3: Sensitivity, Threshold, and Output Chain Characterization

Written by giux | Published on Aug 22, 2026 | No comments

GX-TXT-v3 sensitivity and threshold testing, following QIN, HOLD and orange LED behavior across gain and sensitivity settings.

#circuit simulation #electronic measurements #GX-TXT-v3 #HOLD circuit #infrared detector #infrared remote control #IR Remote Control Tester #LTspice #orange LED #output stage #PCB testing #POT_GAIN #POT_SENS #QIN amplifier #sensitivity adjustment #threshold circuit #transistor amplifier

Appunti di banco per la caratterizzazione DC della GX-TXT-v3 con schema e misure di polarizzazione

GX-TXT-v3: IR Remote Control Tester – DC Bias and Timer Verification

Written by giux | Published on Aug 19, 2026 | No comments

GX-TXT-v3 DC bias measurements, current consumption and NE555 timer verification compared with LTspice simulation.

#circuit simulation #current consumption #DC bias #DC operating point #electronic measurements #electronics #GX-TXT-v3 #infrared remote control #IR Remote Control Tester #LTspice #NE555 #PCB testing #photodiode #timer circuit #transistor biasing