Advertisement
In order to better use the power supply, please read the user
manual carefully before using and keeping it properly.
Warning: Do not connect any load to the power supply before it's turned on.
Likewise, make sure to disconnect the load before shutting down the power
supply. Damages to the power supply can happen if you do not follow this.
Such damages are not under warranty.
Warning: If you are running inductive load like magnetic coils, DC motors,
stepper motors, etc., make sure to change the voltage/current slowly, and
NEVER turn the power supply on or off with a inductive load connected!
1. Summary:
This serial multiplex output is high-precision power supply composed of
two way regulated output power supply and one-way fixed output power
supply. It uses four groups of three LED to display output voltage and current
values of the two way power supply respectively. In addition, two-way
regulated output power supply possesses automatic transfer function to
regulate voltage and current. And its circuit is composed of compensating pipe
power exhaustion steering circuit, operational amplifier and reference voltage
regulator with temperature compensation. Therefore, the circuit is stable and
reliable. The output power voltage of the power supply may randomly be
regulated from 0 to nominal voltage value. When it is in the state of current
regulation, the current regulation output current can continuously be regulated
from 0 to nominal current value. The two-way regulated power supply can be
randomly in series or in parallel in terms of the power supply. When it is in
series or in parallel, one circuit may track its voltage or current (in
parallel).The maximum output voltage can reach the total amount of the
two-way voltage rating when it is in series, while the maximum output current
can reach the total amount of the two-way current rating when it is in parallel.
The other regularly outputs 5V power supply, and the controlling part is
composed of single scale integrated regulator. The three groups of power
1
Advertisement
Table of Contents
Related Manuals for Longwei Electric TPR-3002-2D
Summary of Contents for Longwei Electric TPR-3002-2D
- Page 1 In order to better use the power supply, please read the user manual carefully before using and keeping it properly. Warning: Do not connect any load to the power supply before it's turned on. Likewise, make sure to disconnect the load before shutting down the power supply.
- Page 2 5A） (2) Two-way regulated power supply: Nominal output voltage: see table (can be regulated continuously) Nominal output current: see table (can be regulated continuously) Model voltage current Fixed output TPR-3002-2D 2×0-30V 2×0-2A 5V/3A TPR-3003-2D 2×0-30V 2×0-3A 5V/3A TPR-3005-2D 2×0-30V...
-
Page 3: Working Principles
Digital voltmeter and ammeter, three LED digital displays. Precision: voltmeter ±1%+2 figures Ammeter±2%+2 figures (8) Other: two-way power supply can be in series and in parallel, one-way main power supply may regulate output voltage when it is in series and in parallel, at the moment the output voltage from the power supply strictly tracks the output magnitude of voltage of the main power supply. - Page 4 Figure 1 When the output voltage is changed due to the change of power supply voltage or load current, then the changed signals were compared by voltage regulation sampling circuit and reference voltage, and the error signals were amplified by comparison amplifier and the output voltage was regulated as the set value by amplifying circuit controlling and regulating tube.
- Page 5 rectification and high volume capacitor filter, so the alternating component of the output direct voltage is very small in quantity. The auxiliary power supply composes auxiliary power circuit with N and relevant resistance. It is mainly used as the positive and negative of the integrated operational amplifier and V integrated reference voltage of regulator.
- Page 6 the reference voltage has good stability. RP regulation resistance is placed on the panel; the reference value of the same phase input terminal of the comparison amplifier can only be changed by regulating the resistance values of regulation resistance RP so as to regulate the output magnitude of voltage.
- Page 7 This power supply uses two three binary voltmeters and ammeters to display the output voltage and current at due time. Therefore, the output voltage value and current value of every loop can be surveyed in a timely manner. 3. The control and instruction of the panel 3.1 The function of every element on the panel (1) Numeration table: indicating the major output voltage value and current value.
- Page 8 (4) The subordinate current regulation output current regulation knob: regulating subordinate output current value. (i.e. current limitation protection regulation) (5) Power switch when the power switch is placed “ON” (that is when the power switch is lowered down), the machine is “on”, at this moment the voltage regulation indicator light is on or current regulation light is on.
- Page 9 (17) Main voltage regulation indicator light: when the main power supply is under the condition of voltage regulation, the indicator light is on. (18) Regulator 5V direct power supply output negative terminal: the negative electrode of the output voltage connects to the negative terminal of the load. (19) Regulator 5V direct power supply output positive terminal: the anode of the output voltage connects to the positive terminal of the load.
- Page 10 supply can randomly set current limitation protection. The method for the setting: turn on the power supply, and counterclockwise regulate the current regulation indicators (4) and (20) to the minimum, then short connect regulation knobs (4) and (20) to make output current equal to the necessary current value of the current limitation protection, at this moment the current the current limitation protection is set.
- Page 11 the end of counterclockwise position or the subordinate output current exceeds the current limitation protection, at this moment, the output voltage of the subordinate will no longer track the main output voltage. So knob (4) should be clockwise turn to the maximum when the two ways are in series. ④...
- Page 12 of the main and subordinate leads will be controlled and they are the same. The maximum output current can reach the total amount of currents of the two leads. ③ When the two ways of power supply are in parallel, if there is power output, the corresponding lead of the application power and output power will reliably connects the positive terminals of the main and subordinate ways and the negative terminals of the main and subordinate ways so as to make load...
-
Page 13: Operating Procedure
4.4 Power failures may be caused by improperly using power supply or environment abnormal as well as the ineffectiveness of electron component inside the machine. When there are power failures, the output voltage may exceed the maximum voltage of the rated power, please pay attention when use! Beware of unnecessary load damage. -
Page 14: Voltage Regulation
7.2 Regulation The power supply is precisely regulated before it goes out; if there are errors in precision in repairing, please follow the following procedures to reregulate. (1) Voltage regulation ① on the output terminal of the power supply, a multimeter with the precision of±0.1% will be connected to measure the direct voltage.
Need help?
Do you have a question about the TPR-3002-2D and is the answer not in the manual?
Questions and answers
Hi i have the trp3003-2d when i swich the series button for 63v the right one power supply gatting current the green laight (par) is comming on. Whats the problem please help me about that.