Rechteck-Sägezahn-Generator Design

flux

Ich kann wegen fehlender Ausführungskapazität gerade keine Änderungen am Projekt vornehmen.
Bisher wurde in dieser Sitzung noch nichts am Schaltplan geändert. Dein Projekt enthält aktuell bereits Batterie, KXTJ3-1057, einen Battery-Charger und einen LM1117T-3.3; es gibt aber noch keinen ausgearbeiteten Rechteck-/Sägezahn-Generator.
Für den nächsten Schritt würde ich einen Rechteck-Sägezahn-Generator als eigenen Funktionsblock ergänzen, typischerweise mit:
  • Timer/Oszillator für das Rechtecksignal
  • Integrator oder Konstantstrom-Lade-/Entladeglied für den Sägezahn
  • Versorgung über die vorhandene 3,3-V-Schiene, falls kompatibel
  • Abblockkondensatoren und passende Ausgangsanschlüsse
  • anschließender ERC-Prüfung und ggf. Simulation der Signalformen
Offen ist vor allem die Spezifikation:
  • gewünschte Frequenz oder Frequenzbereich
  • Amplitude des Rechtecks und Sägezahns
  • Versorgungsspannung: 3,3 V fest oder auch Batterie direkt?
  • Ausgangslast bzw. Anschlussziel
  • ob ein 555, Op-Amp/Komparator oder Mikrocontroller-basierter Generator bevorzugt ist.
1 kHz spezifizieren
CMOS-555 verwenden
Bauteile suchen
Anforderungen dokumentieren
Schaltung simulieren
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D1
R1
Resistance
100 Ω
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Confidential Blush Time Machine

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Properties

Properties describe core aspects of the project.

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