DE20103217U1 - Blower motor with frequency control to maintain a constant speed - Google Patents

Blower motor with frequency control to maintain a constant speed

Info

Publication number
DE20103217U1
DE20103217U1 DE20103217U DE20103217U DE20103217U1 DE 20103217 U1 DE20103217 U1 DE 20103217U1 DE 20103217 U DE20103217 U DE 20103217U DE 20103217 U DE20103217 U DE 20103217U DE 20103217 U1 DE20103217 U1 DE 20103217U1
Authority
DE
Germany
Prior art keywords
frequency
constant speed
blower motor
differential amplifier
obtaining
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
Application number
DE20103217U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sunonwealth Electric Machine Industry Co Ltd
Original Assignee
Sunonwealth Electric Machine Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sunonwealth Electric Machine Industry Co Ltd filed Critical Sunonwealth Electric Machine Industry Co Ltd
Priority to DE20103217U priority Critical patent/DE20103217U1/en
Publication of DE20103217U1 publication Critical patent/DE20103217U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (5)

1. Gebläsemotor mit variabler Frequenz zum Erhalt einer konstanten Geschwindigkeit, bei dem der Gebläsemotor ein Gebläse (80), einen Impulssignaleingang, einen Frequenzkomparator (50), eine integrierte Differentialschaltung (60) und einen Differentialverstärker (70) aufweist, wobei der Frequenzkomparator (50) eine Frequenzdifferenz zwischen der Frequenz am Impulssignaleingang und der Frequenz eines von dem Gebläse detektierten Geschwindigkeitssignals berechnet, die integrierte Differntialschaltung (60) die Frequenzdifferenz in ein Spannungssignal umwandelt, das am negativen Anschluß des Differentialverstärkers (70) eingegeben wird, die vorgegebene Spannung an den positiven Anschluß des Differentialverstärkers (70) angelegt wird und einen Spannungswert am negativen Anschluß des Differentialverstärkers (70) mit einem Spannungswert am positiven Anschluß des Differentialverstärkers (70) verglichen wird, um auf diese Weise die an ein Eingangsende des Gebläses abgegebene Spannung zu ändern.1. A variable frequency blower motor for maintaining a constant speed, in which the blower motor comprises a blower ( 80 ), a pulse signal input, a frequency comparator ( 50 ), an integrated differential circuit ( 60 ) and a differential amplifier ( 70 ), the frequency comparator ( 50 ) calculates a frequency difference between the frequency at the pulse signal input and the frequency of a speed signal detected by the fan, the integrated differential circuit ( 60 ) converts the frequency difference into a voltage signal that is input to the negative connection of the differential amplifier ( 70 ), the predetermined voltage to the positive terminal of the differential amplifier (70) is created and is compared to a voltage value at the negative terminal of the differential amplifier (70) having a voltage value at the positive terminal of the differential amplifier (70), in order in this way to an input end of the Gebläs to change it delivered voltage. 2. Gebläsemotor mit variabler Frequenz zum Erhalt einer konstanten Geschwindigkeit gemäß Anspruch 1, wobei der Frequenzkomparator (50) zwei Flip-Flops (51, 52) und ein Umkehr-UND-Gatter (53) aufweist.The variable frequency blower motor for obtaining a constant speed according to claim 1, wherein the frequency comparator ( 50 ) has two flip-flops ( 51 , 52 ) and an inverting AND gate ( 53 ). 3. Gebläsemotor mit variabler Frequenz zum Erhalt einer konstanten Geschwindigkeit gemäß Anspruch 1, wobei die integrierte Differentialschaltung (60) zwei Widerstände (R1 und R2), einen Kondensator (C1) und einen Komparator (OP1) aufweist.3. fan motor having a variable frequency for obtaining a constant speed according to claim 1, wherein the integrated differential circuit (60) comprises two resistors (R1 and R2) has a capacitor (C1) and a comparator (OP1). 4. Gebläsemotor mit variablere Frequenz zum Erhalt einer konstanten Geschwindigkeit gemäß Anspruch 1, wobei die Frequenz am Impulssignaleingang die Geschwindigkeit des Gebläses (80) steuern kann.4. A variable frequency blower motor for obtaining a constant speed according to claim 1, wherein the frequency at the pulse signal input can control the speed of the blower ( 80 ). 5. Gebläsemotor mit variabler Frequenz zum Erhalt einer konstanten Geschwindigkeit gemäß Anspruch 1, wobei die von dem Differentialverstärker (70) abgegebene Spannung eine glatte, lineare Wellenform hat.The variable frequency blower motor for obtaining a constant speed according to claim 1, wherein the voltage output from the differential amplifier ( 70 ) has a smooth, linear waveform.
DE20103217U 2001-02-23 2001-02-23 Blower motor with frequency control to maintain a constant speed Expired - Lifetime DE20103217U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20103217U DE20103217U1 (en) 2001-02-23 2001-02-23 Blower motor with frequency control to maintain a constant speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20103217U DE20103217U1 (en) 2001-02-23 2001-02-23 Blower motor with frequency control to maintain a constant speed

Publications (1)

Publication Number Publication Date
DE20103217U1 true DE20103217U1 (en) 2001-05-17

Family

ID=7953429

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20103217U Expired - Lifetime DE20103217U1 (en) 2001-02-23 2001-02-23 Blower motor with frequency control to maintain a constant speed

Country Status (1)

Country Link
DE (1) DE20103217U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1275851A1 (en) * 2001-07-11 2003-01-15 Technofan Fan control
DE102006029723B4 (en) * 2006-06-28 2014-09-18 Fujitsu Technology Solutions Intellectual Property Gmbh Fan control and method for adjusting the speed of a fan
DE202017102952U1 (en) 2017-05-16 2017-06-21 Ebm-Papst Mulfingen Gmbh & Co. Kg Synchronous machine for sensorless speed control of the synchronous machine
DE102017110646A1 (en) 2017-05-16 2018-11-22 Ebm-Papst Mulfingen Gmbh & Co. Kg Synchronous machine and method for sensorless speed control of the synchronous machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1275851A1 (en) * 2001-07-11 2003-01-15 Technofan Fan control
FR2827344A1 (en) * 2001-07-11 2003-01-17 Technofan FAN FOR AN AIR CONDITIONING NETWORK, VENTILATION UNIT COMPRISING SAME AND TRANSPORTATION EQUIPMENT COMPRISING SUCH VENTILATION UNITS
DE102006029723B4 (en) * 2006-06-28 2014-09-18 Fujitsu Technology Solutions Intellectual Property Gmbh Fan control and method for adjusting the speed of a fan
DE202017102952U1 (en) 2017-05-16 2017-06-21 Ebm-Papst Mulfingen Gmbh & Co. Kg Synchronous machine for sensorless speed control of the synchronous machine
DE102017110646A1 (en) 2017-05-16 2018-11-22 Ebm-Papst Mulfingen Gmbh & Co. Kg Synchronous machine and method for sensorless speed control of the synchronous machine
WO2018210531A1 (en) 2017-05-16 2018-11-22 Ebm-Papst Mulfingen Gmbh & Co. Kg Synchronous machine and method for regulating the rotational speed of the synchronous machine without sensors
US11228266B2 (en) 2017-05-16 2022-01-18 Ebm-Papst Mulfingen Gmbh & Co. Kg Synchronous machine and method for regulating the rotational speed of the synchronous machine without sensors

Similar Documents

Publication Publication Date Title
DE20103757U1 (en) Blower motor with two-stage speed control
DE20103020U1 (en) Blower motor with a speed controlled by the working periods of a pulse wave
DE20103217U1 (en) Blower motor with frequency control to maintain a constant speed
WO1989007243A1 (en) Circuit controlled flow probe
EP0358122A2 (en) Temperature sensor
DE2618971B2 (en) AUTOMATIC GAIN CONTROL
DE69824203T2 (en) ELECTRONIC CIRCUIT FOR THE AUTOMATIC COMPENSATION OF A SENSOR SIGNAL
EP1148647A3 (en) Circuit arrangement for receiving at least two digital signals
DE20103136U1 (en) Blower motor with thermally controlled variable speed
CH600892A5 (en) Medical infusion pump container discharge monitor
US4305008A (en) Rectifiers
WO1990011500A1 (en) Process and device for measuring mechanical deformation
DE102018105234B4 (en) Method for operating a capacitive pressure measuring device
DE2822509B2 (en) Measuring circuit arrangement for measuring analog electrical quantities and analog physical quantities
KR0112812Y1 (en) Ad converter with fixed amplifier
DE2805905A1 (en) Linear semiconductor temp. sensor - has sensing transistor shunted by voltage divider with tap coupled to base
DE2128724A1 (en) Speedometer
DE1297703B (en) Circuit arrangement for linearizing the amplification of a high frequency amplifier for single sideband signals
DE20116288U1 (en) temperature sensor
US4429582A (en) Vortex shedding flowmeter circuit with analog and pulse output signal
DE4004661A1 (en) Signal generator with constant keying ratio - has low pass at clock pulse generator output, comparator, and reference voltage divider
DE29909902U1 (en) Temperature-dependent amplifier circuit
DE1949056A1 (en) Circuit arrangement for measuring and displaying very small high-frequency voltages
KR920003033Y1 (en) Two-output balance control circuit
DE2801704B1 (en) Rectifier circuit for the determination of peak voltage values

Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20010621

R150 Term of protection extended to 6 years

Effective date: 20040303

R151 Term of protection extended to 8 years

Effective date: 20070202

R158 Lapse of ip right after 8 years

Effective date: 20090901