Description
Pambuka singkat
Iki minangka wangun pemancar FM sing paling gampang, sing bisa ngirim musik siaran utawa swara menyang jarak nganti 50 meter, gumantung saka jinis antena sing digunakake. Sistem kasebut bisa digunakake tanpa nyetel lan kristal kuarsa sing digunakake dikunci nganti maksimal 90MHz. Sistem iki ngilangake drift frekuensi, efek umum saka sistem pemancar basis LC modern.
Komponen lan Requirements
AE1, 1 Antena Antena Konektor_Kawat:SolderWire-0.1sqmm_1x01_D0.4mm_OD1mm Antena
C1, 1 potong 10u, 35V CP1_Kapasitor Kecil_SMD:C_0805_2012Metric Polarized kapasitor, simbol AS cilik
C2, 1 100u 35V CP1_Kapasitor Cilik_SMD:C_0805_2012Metrik Kapasitor Polarisasi, simbol AS cilik
C3, 1 330p C_Kapasitor Cilik_SMD:C_0805_2012Metrik Unpolarized kapasitor, simbol cilik
C4, C6, 2 100n C_Kapasitor Cilik_SMD:C_0805_2012Metric Unpolarized kapasitor, simbol cilik
C5, 1 33p C_Kapasitor Cilik_SMD:C_0805_2012Metrik Unpolarized kapasitor, simbol cilik
D1, 1 1SV149 D_Kapasitansi Dioda_SMD:D_0805_2012Metric Varactor Diode
J1, 1 AudioJack2 AudioJack2 Konektor_Coaxial:U.FL_Hirose_U.FL-R-SMT-1_Vertical Audio Jack, 2 kutub (Mono / TS)
Baterei J2, 1 12V. Conn_01x02 Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical Universal connector, single line, 01×02, script generation (kicad-library-utils/schlib/autogen/connector/)
L1, 1 L_Small L_Small Induktor_SMD: L_0805_2012Metric Induktor, simbol cilik
Q1, 1 Paket PN2222A PN2222A_TO_SOT_SMD: SOT-323_SC-70_Handsoldering 1A Ic, 40V Vce, Transistor NPN, Transistor Universal, TO-92
R1, 1 330E R_Small_US Resistor_SMD:R_0805_2012Metric Resistor, simbol AS cilik
R2, 1 100K R_Small_US Resistor_SMD:R_0805_2012Metric Resistor, simbol AS cilik
R3, 1 10K R_Small_US Resistor_SMD:R_0805_2012Metric Resistor, simbol AS cilik
R4, 1 4.7K R_Small_US Resistor_SMD:R_0805_2012Metric Resistor, simbol AS cilik
R5, 1 150E R_Small_US Resistor_SMD:R_0805_2012Metric Resistor, simbol AS cilik
RV1, 1 10K R_POT_US Potentiometer_THT:Potentiometer_Bourns_3266W_Vertical Potentiometer, simbol AS
U1, 1 LM386 LM386 Paket_TO_SOT_SMD:SC-70-8 amplifier daya audio tegangan rendah, DIP-8/SOIC-8/SSOP-8
Y1, 1 30MHz Crystal_Small Crystal: Crystal_SMD_0603-2Pin_6.0x3.5mm osilator kristal loro-pin, simbol cilik
Sistem sirkuit lan prinsip kerjane
Sistem kasebut dibangun ing sekitar amplifier audio kurang daya LM386, transistor PN2222A, dioda varactor 1SV149, kristal kuarsa 30MHz lan komponen liyane kayata potentiometer, dioda, kapasitor lan resistor.
Sirkuit panyimpenan energi sing dibangun ing kolektor PN2222A kasusun saka induktor L1 lan kapasitor C5, lan frekuensi tuning 3 kaping frekuensi dirating kristal kuarsa, yaiku 90MHz. 90MHz diunggahake banjur digandhengake liwat kapasitor C4 menyang antena kabel sing digunakake kanggo ngirim musik utawa audio supaya panrima FM sing adohe 30 t0 50 meter bisa njupuk transmisi kasebut.
Tata letak papan sirkuit dicithak
Gambar ing ngisor iki nuduhake tata letak PCB sistem pemancar FM.
Amarga syarat presisi dhuwur, desain rampung nggunakake KiCAD EDA, ing ngendi komponen disusun miturut sirkuit kanggo nyiapake produksi.
Rendering sistem telung dimensi kaya ing ngisor iki:
Mbangun model kuwi
Model kasebut bisa dibangun ing omah kanthi nggunakake papan roti lan kabeh komponen sing kadhaptar, nanging kanggo kualitas sing luwih apik, PCBway nawakake layanan manufaktur kanggo papan kasebut, sing kanggoku minangka pilihan sing paling apik.
KiCAD duwe plugin PCBway sing mbantu sampeyan nggawe pesenan siji-klik.
Bukak KiCAD lan klik Plugins lan Content Manager kaya sing dituduhake kursor ing gambar ing ngisor iki.
Gulung mudhun menyang Kicad's PCBway plugin banjur klik Instal. ndeleng Lampiran;
Plugin saiki wis diinstal kanthi lengkap.
Keuntungan saka plugin iki yaiku kanthi mung siji klik sampeyan bisa ngekspor kabeh file manufaktur menyang PCBway lan langsung pesen tanpa kudu ndownload file kasebut menyang komputer lan ngirim kanthi manual ing kaca online PCBway Instant Quotation.





