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參數(shù)資料
| 型號(hào)： | TDA1085C |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Universal Motor Speed Controller(通用電機(jī)速度控制器) |
| 中文描述： | UNIVERSAL MOTOR CONTROLLER, 0.2 A, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁(yè)數(shù)： | 5/12頁(yè) |
| 文件大?。?/td> | 102K |
| 代理商： | TDA1085C |
TDA1085C
http://onsemi.com
5
As the voltages applied by Pins 5 and 6 are derived from
the internal voltage regulator supply and Pin 4 voltage is also
derived from the same source, motor speed (which is
determined by the ratios between above mentioned
voltages) is totally independent from VCC variations and
temperature factor.
Control Amplifier (Pin 16)
It amplifies the difference between true speed (Pin 4) and
set speed (Pin 5), through the ramp generator. Its output
available at Pin 16 is a double sense current source with a
maximum capability of
±
100
μ
A and a specified
transconductance (340
μ
A/V typical). Pin 16 drives directly
the trigger pulse generator, and must be loaded by an
electrical network which compensates the mechanical
characteristics of the motor and its load, in order to provide
stability in any condition and shortest transient response; see
Figure 4.
This network must be adjusted experimentally.
In case of a periodic torque variations, Pin 16 directly
provides the phase angle oscillations.
Trigger Pulse Generator (Pins 1, 2, 5, 13, 14, 15)
This circuit performs four functions:
The conversion of the control amplifier DC output
level to a proportional firing angle at every main line
half cycle.
The calibration of pulse duration.
The repetition of the pulse if the triac fails to latch on if
the current has been interrupted by brush bounce.
The delay of firing pulse until the current crosses zero
at wide firing angles and inductive loads.
RPin 15 programs the Pin 14 discharging current. Saw
tooth signal is then fully determined by R15 and C14
(usually 47 nF). Firing pulse duration and repetition period
are in inverse ratio to the saw tooth slope.
Pin 13 is the pulse output and an external limiting resistor
is mandatory. Maximum current capability is 200 mA.
Current Limiter (Pin 3)
Safe operation of the motor and triac under all conditions
is ensured by limiting the peak current. The motor current
develops an alternative voltage in the shunt resistor (0.05
in Figure 4). The negative half waves are transferred to Pin
3 which is positively preset at a voltage determined by
resistors R3 and R4. As motor current increases, the
dynamical voltage range of Pin 3 increases and when Pin 3
becomes slightly negative in respect to Pin 8, a current
starts to circulate in it. This current, amplified typically 180
times, is then used to discharge Pin 7 capacitor and, as a
result, reduces firing angle down to a value where an
equilibrium is reached. The choice of resistors R3, R4 and
shunt determines the magnitude of the discharge current
signals on CPin 7.
Notice that the current limiter acts only on peak triac
current.
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| TDA1085 | UNIVERSAL MOTOR SPEED CONTROLLER |
| TDA1085C | UNIVERSAL MOTOR SPEED CONTROLLER |
| TDA1085CD | UNIVERSAL MOTOR SPEED CONTROLLER |
| TDA1185A | Triac Phase Angle Controller |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA1085CD | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:UNIVERSAL MOTOR SPEED CONTROLLER |
| TDA1085CG | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Universal Motor Speed Controller RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TDA1085CG | 制造商:ON Semiconductor 功能描述:Power Supply IC |
| TDA10H0JB1 | 功能描述:DIP 開(kāi)關(guān)/ SIP 開(kāi)關(guān) SM HalfPitch DIP Swt SPST, 10 POS, JTerm RoHS:否 制造商:Omron Electronics 位置數(shù)量:10 開(kāi)關(guān)類型:DIP 執(zhí)行器:Rotary 端子節(jié)距:2.54 mm 觸點(diǎn)形式: 端接類型:Solder Pin 電流額定值:100 mA 電壓額定值 DC: 工作溫度范圍: 安裝:Through Hole |
| TDA10H0JB1R | 功能描述:DIP 開(kāi)關(guān)/ SIP 開(kāi)關(guān) SM HalfPitch DIP Swt SPST, 10 POS, JTerm RoHS:否 制造商:Omron Electronics 位置數(shù)量:10 開(kāi)關(guān)類型:DIP 執(zhí)行器:Rotary 端子節(jié)距:2.54 mm 觸點(diǎn)形式: 端接類型:Solder Pin 電流額定值:100 mA 電壓額定值 DC: 工作溫度范圍: 安裝:Through Hole |
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