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參數資料
| 型號： | U2010B |
| 英文描述： | Phase Control Circuit for Current Feedback |
| 中文描述： | 相位控制電路的電流反饋 |
| 文件頁數： | 4/12頁 |
| 文件大小： | 202K |
| 代理商： | U2010B |
U2010B
TELEFUNKEN Semiconductors
Rev. A1, 28-May-96
4 (12)
Current Synchronization
Current synchronization fulfils two functions:
Monitoring the current flow after triggering.
In case the triac extinguishes again or it does not switch
on, automatic triggering is activated until the
triggering is successful.
Avoiding a triggering due to inductive load.
In the case of inductive load operation the current
synchronization ensures that in the new half wave no
pulse is enabled as long as there is a current available
which from the previous half-wave, which flows from
the opposite polarity to the actual supply voltage.
A special feature of the integrated circuit is the
realization of this current synchronization. The device
evaluates the voltage at the pulse output between gate and
reference electrode of the triac. This results in saving
separate current synchronization input with specified
series resistance.
Voltage Synchronization with Mains Voltage
Compensation
The voltage detector synchronizes the reference ramp
with the mains-supply voltage. At the same time, the
mains dependent input current at Pin 15 is shaped and
rectified internally. This current activates the automatic
retriggering and at the same time is available at Pin 5. By
suitable dimensioning, it is possible to attain the specified
compensation effect. Automatic retriggering and mains
voltage compensation are not activated until |V
15
–
10
|
increases to 8 V. Resistance, R
sync.
defines the width of
the zero voltage cross over pulse, synchronization
current, and hence the mains supply voltage
compensation current.
Mains
R
2
2x
BZX55
C6V2
U2010B
96 11648
15
10
Figure 3.
If the mains voltage compensation and the automatic
retriggering are not required, both functions can be
suppressed by limiting |V
15 – 10
|
7 V (figure 3).
Load Current Compensation
The circuit continuously measures the load current as a
voltage drop at resistance R
6
. The evaluation and use of
both half waves results in a quick reaction to load current
change. Due to voltage at resistance R
6
, there is a
difference between both input currents at Pins 1 and 2.
This difference controls the internal current source,
whose positive current values are available at Pins 5
and 6. The output current generated at Pin 5 contains the
difference from the load-current detection and from the
mains-voltage compensation (see figure 1).
The effective control voltage at Pin 4 is the final current
at Pin 5 together with the desired value network. An
increase of mains voltage causes the increase of control
angle
α
, an increase of load current results in a decrease
in the control angle. This avoiding a decrease in
revolution by increasing the load as well as the increase
of revolution by the increment of mains supply voltage.
Load Current Limitation
The total output load current is available at Pin 6. It
results in a voltage drop across R
11
. When the potential
of the load current reaches about 70% of the threshold
value (V
T70
) i.e., ca. 4.35 V at Pin 6, it switches the high
load comparator and opens the switch between Pins 11
and 12. By using an LED between these pins, (11 and 12)
a high load indication can be realized.
If the potential at Pin 6 increases to ca. 6.2 V (= V
T100
),
it switches the overload comparator. The result is
programmable at Pin 9 (operation mode).
Mode selection:
a)
α
max
(V
9
= 0)
In this mode of operation, after V
6
has reached the
threshold V
T100
, Pin 13 switches to –V
S
(Pin 11) and
Pin 6 to GND (Pin 10). A soft-start capacitor is then
shorted and the control angle is switched to
α
max
.
This position is maintained until the supply voltage
is switched off. The motor can be started again with
soft-start function when the power is switched on
again. As the overload condition switches Pin 13 to
Pin 11, it is possible to set in a smaller control angle,
α
max
, by connecting a further resistance between
Pins 13 and 14.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| U2010B_10 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Programmable Load-current Limitation with Over- and High-load Output |
| U2010B-M | 功能描述:IC PHASE-CONTROL FDBK/OTP 16-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅動器 系列:- 產品變化通告:ATA683(3,4)PLQW Obsolescence 09/Aug/2012 標準包裝:1 系列:- 應用:DC 電機控制器，無刷（BLDC），3 相 評估套件:可供 輸出數:1 電流 - 輸出:100mA 電壓 - 負載:5.25 V ~ 20 V 電源電壓:5.25 V ~ 20 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應商設備封裝:48-VQFN（7x7） 包裝:剪切帶 (CT) 其它名稱:ATA6833-PLQWCT |
| U2010B-MFP | 功能描述:IC PHASE-CONTROL FDBK/OTP 16SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅動器 系列:- 產品變化通告:ATA683(3,4)PLQW Obsolescence 09/Aug/2012 標準包裝:1 系列:- 應用:DC 電機控制器，無刷（BLDC），3 相 評估套件:可供 輸出數:1 電流 - 輸出:100mA 電壓 - 負載:5.25 V ~ 20 V 電源電壓:5.25 V ~ 20 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應商設備封裝:48-VQFN（7x7） 包裝:剪切帶 (CT) 其它名稱:ATA6833-PLQWCT |
| U2010B-MFPG3 | 功能描述:IC PHASE-CONTROL FDBK/OTP 16SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅動器 系列:- 標準包裝:1 系列:- 應用:直流電機驅動器，步進電機驅動器 評估套件:- 輸出數:1 或 2 電流 - 輸出:750mA 電壓 - 負載:10 V ~ 40 V 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-BFSOP（0.295"，7.50mm 寬） 供應商設備封裝:24-SOP 包裝:Digi-Reel® 其它名稱:MTS62C19A-HS105DKR |
| U2010B-MFPG3Y | 功能描述:馬達/運動/點火控制器和驅動器 Phase Switch Ctrl. RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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