DE29801870U1 - Electronic speed controller with reversal of direction of rotation for DC motors in radio-controlled flight, ship and vehicle models - Google Patents
Electronic speed controller with reversal of direction of rotation for DC motors in radio-controlled flight, ship and vehicle modelsInfo
- Publication number
- DE29801870U1 DE29801870U1 DE29801870U DE29801870U DE29801870U1 DE 29801870 U1 DE29801870 U1 DE 29801870U1 DE 29801870 U DE29801870 U DE 29801870U DE 29801870 U DE29801870 U DE 29801870U DE 29801870 U1 DE29801870 U1 DE 29801870U1
- Authority
- DE
- Germany
- Prior art keywords
- power
- supply voltage
- motor
- speed controller
- rotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000007257 malfunction Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
Landscapes
- Toys (AREA)
- Control Of Multiple Motors (AREA)
Description
BeschreibungDescription
Elektronischer Drehzahlsteller mit Drehrichtungsumkehrung für Gleichstrommotoren in funkferngesteuerten Flug-, Schiffs- und Fahrzeugmodellen.Electronic speed controller with reversing function for DC motors in radio-controlled aircraft, ships and vehicle models.
Die heute üblichen elektronischer Drehzahlsteller mit Drehrichtungsumkehrung für Gleichstrommotoren für Flug-, Schiffs- und Fahrzeugmodelle besitzen zwar oft Schutzvorrichtungen für Übertemperatur, Überstrom und Unterspannung, jedoch sind sie nicht gegen Verpolung der Versorgungsspannung geschützt.Although the electronic speed controllers with reversing function for DC motors for aircraft, ships and vehicle models that are common today often have protective devices for overtemperature, overcurrent and undervoltage, they are not protected against reverse polarity of the supply voltage.
Der im Schutzanspruch 1 angegebenen Erfindung liegt das Problem zugrunde, einen elektronischer Drehzahlsteller mit Drehrichtungsumkehrung für Gleichstrommotoren für Flug-, Schiffs- und Fahrzeugmodelle zu bauen, der gegen Verpolung der Versorgungsspannung geschützt ist, da im hektischen Modellbetrieb mit häufigem Akkuwechsel immer wieder vom Anwender die Versorgungsspannung versehentlich falsch angeschlossen wird und somit der nicht gegen Verpolung geschützte Drehzahlsteller zerstört wird und der Anwender durch unkontrolliert laufende Motoren dann gefährdet wird.The invention specified in claim 1 is based on the problem of building an electronic speed controller with reversal of direction of rotation for DC motors for aircraft, ship and vehicle models, which is protected against reverse polarity of the supply voltage, since in hectic model operation with frequent battery changes the user repeatedly accidentally connects the supply voltage incorrectly and thus the speed controller, which is not protected against reverse polarity, is destroyed and the user is then endangered by uncontrolled running motors.
Dieses Problem wird mit den in Schutzanspruch 1 aufgeführten Merkmalen gelöst.This problem is solved with the features listed in claim 1.
Der Stromfluß über die Source-Drain-Strecke der Leistungs-MOSFETS (Tl, T2) wird durch den Leistungs-MOSFET (T3) unterbrochen. Die restliche Schaltung wird mit Hilfe von der Diode (Dl) vor der falschen Polarität geschützt.The current flow through the source-drain path of the power MOSFETs (Tl, T2) is interrupted by the power MOSFET (T3). The rest of the circuit is protected from incorrect polarity by the diode (Dl).
Durch Ansteuerung der Leistungs-MOSFETs des Freilauf-Zweigs im Gegentakt zum Leistungszweig, wird eine aktive Freilaufdiode bereitgestellt.By controlling the power MOSFETs of the freewheeling branch in push-pull to the power branch, an active freewheeling diode is provided.
Um das Relais mit möglichst geringer Verlustleistung ansteuern zu können, wird nicht die Versorgungsspannung verwendet, da sich diese je nach Einsatzgebiet des Drehzahlstellers im Bereich von 7 V bis 50 V bewegt, sondern es wird die die 5 V-Spannung des Empfängerstromkreises verwendet.In order to be able to control the relay with the lowest possible power loss, the supply voltage is not used, as this varies between 7 V and 50 V depending on the application of the speed controller, but the 5 V voltage of the receiver circuit is used.
Um nun bei zu geringer Spannung des Empfangerstromkreises oder bei festgeklebten Relaiskontakten diese Fehlfunktionen erkennen zu können, ist ein elektrischer Sensor an den Relaiskontakten angebracht.In order to be able to detect malfunctions when the voltage of the receiver circuit is too low or when the relay contacts are stuck, an electrical sensor is attached to the relay contacts.
Ein Ausführungsbeispiel der Erfindung wird anhand der Figur 1 erläutert. Es zeigt ein Relais mit Wechselkontakt (RELl), mit dem das positive Motoranschlußkabel (K3) entweder zur negativen (K2) oder zur positiven (Kl) Versorgungspannung geschaltet wird.An embodiment of the invention is explained using Figure 1. It shows a relay with changeover contact (REL1), with which the positive motor connection cable (K3) is switched either to the negative (K2) or to the positive (K1) supply voltage.
Das negative Motoranschlußkabel (K4) wird über die Halbbrücke bestehend aus den N-leitenden Leistungs-MOSFETs (Tl, T2) und dem N-leitenden Verpolschutz-Leistungs-MOSFET (T3) schnell schaltbar zur positiven (Kl) oder negativen (K2) Versorgungsspannung verbunden.The negative motor connection cable (K4) is quickly connected to the positive (Kl) or negative (K2) supply voltage via the half-bridge consisting of the N-conducting power MOSFETs (Tl, T2) and the N-conducting reverse polarity protection power MOSFET (T3).
Die Diode (Dl) schützt die nachfolgende Ansteuerungsschaltung vor Verpolung der Eingangsspannung. The diode (Dl) protects the subsequent control circuit against reverse polarity of the input voltage.
Richard Gärtner Seite 2 /Richard Gärtner Page 2 /
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29801870U DE29801870U1 (en) | 1998-02-04 | 1998-02-04 | Electronic speed controller with reversal of direction of rotation for DC motors in radio-controlled flight, ship and vehicle models |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29801870U DE29801870U1 (en) | 1998-02-04 | 1998-02-04 | Electronic speed controller with reversal of direction of rotation for DC motors in radio-controlled flight, ship and vehicle models |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29801870U1 true DE29801870U1 (en) | 1998-03-19 |
Family
ID=8052182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE29801870U Expired - Lifetime DE29801870U1 (en) | 1998-02-04 | 1998-02-04 | Electronic speed controller with reversal of direction of rotation for DC motors in radio-controlled flight, ship and vehicle models |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE29801870U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111525537A (en) * | 2020-05-09 | 2020-08-11 | 山东建筑大学 | Protection circuit for realizing reverse connection of polar electrolytic capacitor by using separation element |
-
1998
- 1998-02-04 DE DE29801870U patent/DE29801870U1/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111525537A (en) * | 2020-05-09 | 2020-08-11 | 山东建筑大学 | Protection circuit for realizing reverse connection of polar electrolytic capacitor by using separation element |
CN111525537B (en) * | 2020-05-09 | 2022-05-24 | 山东建筑大学 | Protection circuit for realizing reverse connection of polar electrolytic capacitor by using separation element |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 19980430 |
|
R156 | Lapse of ip right after 3 years |
Effective date: 20011201 |