JP3863903B1 - Power supply adjustment device and gaming machine power supply system using this device - Google Patents

Abstract

A power supply adjustment device suitable for stabilizing power supply from a power transformer to a gaming machine such as a pachinko machine, and a gaming machine power supply system using the device.
When a voltage drop occurs in the power transformer, the threshold voltage S3 increases, the pulse width of the waveform adjustment pulse S5 becomes shorter, and the pulse width of the waveform S1 of the rectangular wave voltage is cut by the shorter pulse width. To be. As a result, immediately after the voltage drop occurs in the power transformer, the pulse width of the waveform S1 of the rectangular wave voltage supplied to the gaming machine becomes longer, so that more current is supplied from the power transformer to the gaming machine than before the voltage drop. To be.
[Selection] Figure 5

Description

  The present invention relates to a power supply adjustment device used as part of a system for supplying power to a gaming machine such as a pachinko machine and a gaming machine power supply system using this device.

  FIG. 6 shows a schematic configuration of a conventional pachinko machine power supply system. In the pachinko machine power supply system S of the figure, a power transformer 2 is provided for each pachinko machine B installed on each island A in the store, and the output voltage from the AC stabilized power supply 1 is stepped down by the power transformer 2. Supply to pachinko machine B. (For the system configuration in which a power transformer is provided for each pachinko machine, see, for example, Patent Document 1)

  However, some recent pachinko machines B require large currents, such as those in which a large number of light bulbs B1 blink not only during big hits but also during normal play, and the current consumption increases periodically or temporarily. Some fluctuate. Under such circumstances, in the conventional pachinko machine power supply system S as described above, the capacity of the power transformer 2 is fixed to be constant in advance. For this reason, according to the conventional pachinko machine power supply system, a periodic or temporary voltage drop occurs in the power transformer 2 in accordance with the fluctuation of the current consumption in the pachinko machine B as described above, and the AC stabilized power supply 1 is provided. However, there is a problem that the power supply from the power transformer 2 to the pachinko machine B is not stable.

Japanese Patent No. 2670029

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a power supply adjustment device suitable for constantly stabilizing power supply from a power supply transformer to a gaming machine such as a pachinko machine, and the like. An object is to provide a gaming machine power supply system using the apparatus.

In order to achieve the above object, as shown in the claim correspondence diagram of FIG. 1, the power supply adjustment device of the present invention provides a gaming machine and a rectangular wave voltage from the AC stabilized power supply (1) to the gaming machine. A power supply adjustment device (3) connected to a power supply transformer (2) to be supplied in a step-down manner, wherein the power supply adjustment device (3) increases in voltage level in accordance with a voltage drop amount of the power supply transformer. A threshold generation means (301) for generating a threshold voltage having a configuration to generate, a comparison wave generation means (302) for generating a comparison wave consisting of a sawtooth wave or a triangular wave to be compared with the electrical signal of the threshold voltage, and The threshold voltage electrical signal is compared with the comparison wave electrical signal, and as a result of comparison, the comparison wave is sliced at the threshold voltage level. Comparing means (303) for outputting a pulse having a length corresponding to the rice width as a waveform adjustment pulse, and a waveform of the rectangular wave voltage supplied from the power transformer to the gaming machine by the pulse width of the waveform adjustment pulse. And a waveform adjusting means (304) for cutting.

  In the power supply adjustment apparatus of the present invention, the apparatus has a main line connecting an input terminal connected to the secondary coil of the power transformer and an output terminal connected to the gaming machine, and the threshold generation means is The output voltage on the output terminal side of the main line is rectified by a transformer and a bridge diode, and based on the rectified output voltage, a circuit that generates a threshold voltage by a shunt regulator and a photocoupler As good as

  In the power supply adjusting apparatus of the present invention, the comparison wave generated by the comparison wave generating means may be a sawtooth wave formed by charging a capacitor and a rapid discharge diode.

  In the power supply adjusting apparatus of the present invention, the waveform adjusting means may be constituted by a circuit using two field effect transistors.

  In the power supply adjustment apparatus of the present invention, the gaming machine may be a pachinko machine, but is not limited thereto, and for example, a slot machine is also included in the gaming machine.

In order to achieve the above object, the gaming machine power supply system of the present invention is a gaming machine power supply system in which an output voltage from an AC stabilized power supply is stepped down by a power transformer and supplied to the gaming machine. A power supply adjustment device is connected in the middle of the power supply line from the power supply to the pachinko machine, and the power supply adjustment device generates a threshold voltage having a configuration in which the voltage level increases according to the voltage drop amount of the power supply transformer. The hold generation means, the comparison wave generation means for generating a comparison wave composed of a sawtooth wave or a triangular wave to be compared with the electric signal of the threshold voltage, and the electric signal of the threshold voltage and the electric signal of the comparison wave are compared. As a result of the comparison, the slice when the comparison wave is sliced at the threshold voltage level is obtained. A waveform that cuts the waveform of the rectangular wave voltage supplied from the power transformer to the gaming machine by the pulse width of the waveform adjustment pulse. And adjusting means.

  In the power supply adjustment device and the gaming machine power supply system of the present invention, when a voltage drop occurs in the power transformer, the threshold voltage increases and the pulse width of the waveform adjustment pulse becomes shorter. And since the pulse width of the waveform of the rectangular wave voltage is cut by the short pulse width, the pulse width of the rectangular wave voltage supplied to the gaming machine immediately increases immediately after the voltage drop occurs in the power transformer. Thus, more current is supplied from the power transformer to the gaming machine than before the voltage drop. When the voltage drop of the power transformer is eliminated from this state, the threshold voltage is lowered and the pulse width of the waveform adjustment pulse is increased. And since the pulse width of the rectangular wave voltage is cut by this long pulse width, immediately after the voltage drop of the power transformer disappears, the pulse width of the waveform of the rectangular wave voltage supplied to the gaming machine is the voltage before the voltage drop. Returning to the original length, the amount of current supplied to the gaming machine returns to the steady state before the voltage drop.

  In the power supply adjustment device and the gaming machine power supply system of the present invention, as described above, by adopting the threshold circuit, waveform circuit, comparison circuit, and waveform adjustment circuit having the above-described configuration, When a voltage drop occurs in the transformer, more current is supplied from the power transformer to the gaming machine than before the voltage drop, and when the voltage drop disappears, the current supply amount from the power transformer to the gaming machine is the same as before the voltage drop. Since the steady state is restored, the power supply from the power transformer to the gaming machine can be stabilized constantly.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings.

  2 is an explanatory diagram of a pachinko machine power supply system incorporating a power supply adjustment device according to an embodiment of the present invention, FIGS. 3 and 4 are circuit diagrams of the power supply adjustment device of FIG. 2, and FIG. 5 is a power supply adjustment of FIG. It is operation | movement explanatory drawing of an apparatus. 3 and the part shown by a in FIG. 4 are the same members, and the part b in FIG. 3 and the part b in FIG. 4 are connected, and the two parts c in FIG. It is connected.

  The pachinko machine power supply system S in FIG. 2 is a system that supplies power to a plurality of pachinko machines B arranged on one island A, and includes an AC stabilized power supply 1, a plurality of power transformers 2, and power supply adjustment. The apparatus 3 is configured.

  The AC stabilized power supply 1 converts a commercial power supply AC100V having a sine waveform into a rectangular wave and supplies it to each power transformer 2. The power transformer 2 is provided for each pachinko machine B on the island A individually and in the vicinity of the pachinko machine B, and the output voltage (AC100V rectangular wave) from the AC stabilized power supply 1 is stepped down to 26V. The power is supplied to the input unit (IN) of the power adjustment device 3. As shown in FIG. 5A, the waveform S1 of the 26V supply voltage is a rectangular wave similar to the output voltage waveform from the AC stabilized power supply 1.

  The power adjustment device 3 is connected in the middle of the power supply line L from the power transformer 2 to the pachinko machine B. As shown in FIG. 3, the power supply adjustment device 3 includes a main line L <b> 1 that connects an input terminal IN connected to the secondary coil of the power transformer 2 and an output terminal OUT connected to the pachinko machine B. The threshold generation circuit (threshold generation means) 4 having the circuit configuration shown in FIG. 4 is connected to the first branch line L2 drawn from the output terminal OUT side of the main line L1. A waveform generation circuit (comparison wave generation means) 5 having a circuit configuration shown in FIG. 3 is connected to the second branch line L3 drawn from the input terminal IN side of the main line L1. Further, a comparison circuit (comparison means) 6 is provided after the threshold generation circuit 4 and the waveform generation circuit 5, and a waveform adjustment circuit (waveform adjustment means) 7 is provided after the comparison circuit 6. Yes.

  The threshold generation circuit 4 rectifies the output voltage on the output terminal OUT side by a transformer 4A and a bridge diode 4B for increasing sensitivity, and based on the rectified output voltage, a shunt regulator 4C and a photocoupler 4D Thus, the threshold voltage S3 shown in FIG. 5C is generated. The level of the generated threshold voltage S3 is increased according to the voltage drop amount of the power transformer 2 by the operation of the switching regulator 4C and the photocoupler 4D.

  The comparison wave generating circuit 5 generates a sawtooth wave or a triangular wave to be compared with the electric signal having the threshold voltage. In the present embodiment, a sawtooth wave S4 as shown in FIG. The oblique side portion of the sawtooth wave S4 is formed by charging the capacitor 5A, and the vertical portion of the sawtooth wave S4 is formed by the rapid discharge diode 5B.

  The comparison circuit 6 receives the electric signal of the threshold voltage S3 generated by the threshold generation circuit 4 and the electric signal of the sawtooth wave S4 generated by the waveform generation circuit 5. The comparison circuit 6 compares the two input electric signals and outputs a waveform adjustment pulse S5 as a comparison result. As shown in FIG. 5D, the output waveform adjustment pulse S5 is a pulse having a length corresponding to the slice width when the sawtooth wave S4 is sliced at the level of the threshold voltage S3. The waveform adjustment pulse S5 output from the comparison circuit 6 is input to the waveform adjustment circuit 7.

  The waveform adjustment circuit 7 is provided as means for cutting the waveform S1 of the rectangular wave voltage supplied from the power transformer 2 by the pulse width of the waveform adjustment pulse S5. As a specific configuration of the waveform adjusting circuit 7, in this embodiment, a configuration in which two field effect transistors (FETs) 70A and 70B are incorporated in the main line L1 is adopted. As shown in FIG. 3, this built-in configuration connects the source terminals S and S of both field effect transistors 70A and 70B, and the drain terminal D of the first field effect transistor 70A is on the input terminal IN side of the main line L1. The drain terminal D of the second field effect transistor 70B is connected to the output terminal OUT side of the main line L1, and the gate terminals G and G of both field effect transistors 70A and 70B are both NOT. It is connected to the output terminal 6A of the comparison circuit 6 via the circuit 71.

  The electric signal of the waveform adjustment pulse S5 output from the comparison circuit 6 is inverted by the NOT circuit 71 and is simultaneously input to the gate terminals G and G of the two field effect transistors 70A and 70B. Therefore, while the electrical signal of the waveform adjustment pulse S5 is at a high level, the voltages applied from the NOT circuit 71 to the gate terminals G and G of the two field effect transistors 70A and 70B are both at a low level. Therefore, in this case, the two field effect transistors 70A and 70B are both turned off, and the rectangular shape supplied from the power transformer 2 to the pachinko machine B by the OFF time, that is, the high level pulse width of the waveform adjustment pulse S5. The waveform S1 of the wave voltage is cut as shown by the waveform S6 in FIG.

  On the other hand, while the electrical signal of the waveform adjustment pulse S5 is at the low level, the voltages applied from the NOT circuit 71 to the gate terminals G and G of the two field effect transistors 70A and 70B are both at the high level. Since the gate voltage is applied and the two field effect transistors 70A and 70B are both turned on, the waveform S1 of the rectangular wave voltage supplied from the power transformer 2 to the pachinko machine B is not cut as described above. .

  By the way, in the waveform adjustment circuit 7 configured as described above, when the waveform S1 of the rectangular wave voltage supplied from the power transformer 2 to the pachinko machine B is at a high level, the gates of the two field effect transistors 70A and 70B. When a gate voltage is simultaneously applied to the terminals G and G, a current flows from the source terminal S to the drain terminal D in the first field effect transistor 70A as is well known, and in the second field effect transistor 70B, the drain terminal D When a current flows from the source terminal S to the source terminal S and the waveform S1 of the rectangular wave voltage is at a low level, a gate voltage is simultaneously applied to the gate terminals G and G of the two field effect transistors 70A and 70B. Then, in the second field effect transistor 70B, a current flows from the source terminal S to the drain terminal D as is well known. Flow, the first field effect transistor, a phenomenon that the drain terminal D current flows in the direction of the source terminal S is experimentally confirmed. For this reason, in the present embodiment, a bypass diode that is used by being connected to a field effect transistor as means for flowing a current from the drain terminal D to the source terminal S is omitted.

  Next, the operation of the entire pachinko machine power supply system including the power supply adjustment device 3 configured as described above will be described.

  In the pachinko machine power supply system S in FIG. 2, power is supplied from the AC stabilized power supply 1 to each pachinko machine B via the power transformer 2 and the power supply adjustment device 3. At this time, if the current consumption of the pachinko machine B fluctuates periodically or temporarily, such as when a large number of light bulbs B1 that require a relatively large current blink in the pachinko machine B, the capacity of the power transformer 2 becomes constant in advance. Since it is fixed, a voltage drop occurs in synchronization with fluctuations in the current consumption of the pachinko machine B.

  By the way, when the voltage drop as described above occurs, the power supply adjusting device 3 increases the level of the threshold voltage S3 shown in FIG. The pulse width of the waveform adjustment pulse S5 shown in FIG.

  Then, the waveform cut by the waveform adjustment pulse S5, that is, the cut of the waveform S1 of the rectangular wave voltage supplied from the power transformer 2 to the pachinko machine B by the amount that the pulse width of the waveform adjustment pulse S5 is shortened as described above. The amount is reduced, the pulse width of one pulse of the high and low levels of the rectangular wave voltage is increased, and more current is supplied from the power transformer 2 to the pachinko machine B than before the voltage drop. The power supply to B is stabilized.

  When the voltage drop as described above is eliminated, the threshold voltage S3 is lowered this time, so that the pulse width of the waveform adjustment pulse S5 becomes longer. Since the pulse width of the rectangular wave voltage waveform S1 is cut by this long pulse width, the pulse of the rectangular wave voltage waveform supplied to the pachinko machine B immediately after the voltage drop of the power transformer 2 disappears. The width returns to the original length before the voltage drop, and the amount of current supplied to the pachinko machine B returns to the steady state before the voltage drop.

  By the way, it is assumed that the AC stabilized power supply 1 fails. In this case, since the level of the threshold voltage S3 exceeds the sawtooth wave S4 in the power supply adjustment device 3, the waveform adjustment pulse S5 is not generated, and is sent to the pachinko machine B by the AC 26V of the sine waveform stepped down by the power transformer 2. Is supplied. Therefore, excessive power is not supplied to the pachinko machine B used for AC25V, and the pachinko machine B can be operated as usual until the AC stabilized power supply 1 is restored.

  In the above embodiment, an example in which the power supply adjustment device according to the present invention is incorporated in a pachinko machine power supply system has been described. However, the power supply adjustment device according to the present invention supplies power to a gaming machine other than a pachinko machine, such as a slot table. It can also be used in systems that do.

The claim corresponding figure corresponding to invention of Claim 1. Explanatory drawing of the pachinko machine power supply system incorporating the power supply adjustment device which is one Embodiment of this invention. The circuit diagram of the power supply adjustment apparatus of FIG. Circuit diagram of the power supply adjustment device of FIG. Operation explanatory diagram of the power supply adjustment device of FIG. Explanatory drawing of the conventional pachinko machine power supply system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 AC stabilized power supply 2 Power supply transformer 3 Power supply adjustment device 4 Threshold generation circuit 4A Transformer 4B Bridge diode 4C Shunt regulator 4D Photocoupler 5 Waveform generation circuit 5A Capacitor 5B Rapid discharge diode 5C Transformer 5D Bridge diode 6 Comparison circuit 7 Waveform adjustment Circuit 70A, 70B Field effect transistor 71 NOT circuit A Island B Pachinko machine B1 Light bulb L Power supply line L1 Main line L2, L3 Branch line S Pachinko machine power supply system S1 26V supply voltage waveform S3 Threshold voltage S4 Sawtooth wave S5 Waveform Adjustment pulse

Claims (5)

A power supply adjustment device connected between a gaming machine and a power transformer that steps down and supplies a rectangular wave voltage from an AC stabilized power supply to the gaming machine,
The power supply adjustment device includes:
Threshold generating means for generating a threshold voltage configured to increase a voltage level according to a voltage drop amount of the power transformer;
Comparison wave generating means for generating a comparison wave consisting of a sawtooth wave or a triangular wave to be compared with the electrical signal of the threshold voltage;
The electrical signal of the threshold voltage is compared with the electrical signal of the comparison wave, and as a result of comparison, a pulse having a length corresponding to the slice width when the comparison wave is sliced at the threshold voltage level is waveform A comparison means for outputting as an adjustment pulse;
A power supply adjustment device comprising: a waveform adjustment unit that cuts a waveform of the rectangular wave voltage supplied from the power supply transformer to the gaming machine by a pulse width of the waveform adjustment pulse. The power supply adjustment device has a main line connecting an input terminal connected to the secondary coil of the power transformer and an output terminal connected to the gaming machine,
The threshold generation means rectifies the output voltage on the output terminal side of the main line with a transformer and a bridge diode, and generates a threshold voltage with a shunt regulator and a photocoupler based on the rectified output voltage. It is comprised with a circuit. The power supply adjustment device of Claim 1 characterized by the above-mentioned. The power supply adjustment device according to claim 1, wherein the comparison wave generated by the comparison wave generation unit is a sawtooth wave formed by charging a capacitor and a rapid discharge diode. The power supply adjustment device according to claim 1, wherein the gaming machine is a pachinko machine. In the gaming machine power supply system that steps down the output voltage from the AC stabilized power supply with a power transformer and supplies it to the gaming machine,
In the middle of the power supply line from the power transformer to the pachinko machine, connect a power supply adjustment device,
The power supply adjustment device includes:
Threshold generating means for generating a threshold voltage configured to increase a voltage level according to a voltage drop amount of the power transformer;
Comparison wave generating means for generating a comparison wave consisting of a sawtooth wave or a triangular wave to be compared with the electrical signal of the threshold voltage;
The electrical signal of the threshold voltage is compared with the electrical signal of the comparison wave, and as a result of comparison, a pulse having a length corresponding to the slice width when the comparison wave is sliced at the threshold voltage level is waveform A comparison means for outputting as an adjustment pulse;
A gaming machine power supply system comprising: waveform adjusting means for cutting a waveform of the rectangular wave voltage supplied from the power transformer to the gaming machine by a pulse width of the waveform adjusting pulse.

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